LATIN DICTIONARYLexicon Latīnum
noun · masculinefifth declension

diēs

diēs m or f (genitive diēī)
Classical[ˈdi.eːs]Ecclesiastical[ˈdiː.es]
№ 54 of the 1,000 commonest wordsMille Verba core vocabulary

Meaning

  1. A solar or sidereal day of about 24 hours, especially (historical) Roman dates reckoned from one midnight to the next.
    in diesday by day
    sub diemat daybreak
  2. Daytime: a period of light between sunrise and sunset.
    prima diei horathe first hour of the day
  3. A set day: a date, an appointment.

Latīnē defined in Latin in our graded readers

tempus lūcis, ā māne ad vesperum; etiam tōtum tempus vīgintī quattuor hōrārum.
diēs -ēī m — in Mille Verba, Tempus et Numerī
a day
diēs — in Seneca, ch. I

Choosing the right word Döderlein's Latin Synonyms

Dies · Tempus · Tempestas · Die · Interdiu

1. Dies (from ἔνδιος) denotes time in its pure abstract nature, as mere extension and progression; whereas tempus and tempestas, with a qualifying and physical reference, as the weather and different states of time; tempus denotes rather a mere point of time, an instant, an epoch; tempestas, an entire space of time, a period. Hence dies docebit refers to a long space of time, after the lapse of which information will come, like χρόνος; whereas tempus docebit refers to a particular point of time which shall bring information, like καιρός. (iv. 267.) 2. Die means by the day, in opp. to by the hour or the year; whereas interdiu and diu, by day, in opp. to noctu; but interdiu stands in any connection; diu only in direct connection with noctu. (iv. 288.)

Declension

declension
formsingularplural
nominativediēsdiēs
genitivediēīdiērum
dativediēīdiēbus
accusativediemdiēs
ablativediēdiēbus
vocativediēsdiēs
locativediēdiēbus

Phrases from Meissner's Latin Phrase-Book

in diem vivere
to live from day to day.
alternis diebus
every other day.
de nocte, de die
while it is still night, day.
supremo vitae die
on one's last day.
in dies (singulos)
from day to day.
unus et alter dies
one or two days.
diem dicere alicui
to summon some one to appear on a given day; to accuse a person.
ad diem constitutam
at the appointed time.
27 more phrases
diem videre, cum...
to live to see the day when...
diem dicere colloquio
to appoint a date for an interview.
quattuor dies continui
four successive days.
dies dolorem mitigabit
time will assuage his grief.
singulis annis, diebus
year by year; day by day.
die, caelo vesperascente
when it is growing dusk; towards evening.
dies (fem. in this sense)
the date.
diem proferre (Att. 13. 14)
to adjourn, delay.
multus dies or multa lux est
the day is already far advanced.
mortem (diem supremum) obire
to depart this life.
diem ex die ducere, differre
to put off from one day to another.
iter unius diei or simply diei
a day's journey.
vicissitudines dierum noctiumque
the succession of day and night.
annus (mensis, dies) intercalaris
the intercalary year (month, day).
dies hesternus, hodiernus, crastinus
yesterday, to-day, tomorrow.
diem festum agere (of an individual)
to keep, celebrate a festival.
diem pugnae constituere (B. G. 3. 24)
to fix a day for the engagement.
dies unus, alter, plures intercesserant
one, two, several days had passed, intervened.
diem festum celebrare (of a larger number)
to keep, celebrate a festival.
paucorum dierum spatium ad deliberandum dare
to give some one a few days for reflection.
dicendi mora diem extrahere, eximere, tollere
to pass the whole day in discussion.
supplicationem quindecim dierum decernere (Phil. 14. 14. 37)
to decree a public thanksgiving for fifteen days.

dĭes (dīes, Liv. Andron. Fragm. Odys. 7), ēi (ēī, Verg. A. 4, 156; Hor. S. 1, 8, 35 et saep.;
I. dissyl.: di-ei, Ter. Eun. 4, 7, 31; also gen. dies, die, and dii—dies, as in acies, facies, pernicies, etc., Enn. ap. Gell. 9, 14; Ann. v. 401 Vahl.; Cic. Sest. 12, 28 ap. Gell. l. l.: die, Prisc. p. 780 P.; even in Verg. G. 1, 208, where Gellius reads dies, v. Wagner ad loc., nearly all MSS. have die; cf. Rib. and Forbig. ad loc.; so, die, Plaut. Ps. 4, 7, 59; id. Capt. 4, 2, 20; Caes. B. G. 7, 11, 5; id. B. C. 1, 14, 3; 3, 76, 2; Just. 2, 11, 17; cf. Oud. ad B. G. 2, 23, 1. Die appears to be certain in Sall. J. 52, 3; 97, 3. Also in Cic. Sest. 12, 28, Gellius reads dies, where our MSS., except the Cod. Lamb., have diei; perh. those words do not belong to Cicero himself. Form dii, Verg. A. 1, 636, Rib. and Forbig. after Serv. and Gell. l. l.— Dat., diēī, saep. die, Plaut. Am. 1, 1, 120, acc. to Serv. Verg. G. 1, 208; Plaut. Am. 1, 3, 48; id. Capt. 3, 1, 4; id. Trin. 4, 2, 1; once dii, id. Merc. 1, Prol. 13; cf. Roby, Gram. 1, 121 sq.); m. (in sing. sometimes f., esp. in the signif. no. I. B. 1.) [root Sanscr. dī, gleam: dinas, day; Gr. δῖος, heavenly; cf. Lat. Jovis (Diovis), Diana, deus, dīvus, etc. Old form, dius (for divus); cf.: nudius, diu, etc. The word also appears in composition in many particles, as pridem, hodie, diu, etc., v. Corss. Auspr. 2, 855 sq.], a day (cf.: tempus, tempestas, aetas, aevum, spatium, intervallum).
I. Lit.
A. In gen., the civil day of twenty-four hours.
(a). Masc.: dies primus est veris in Aquario ... dies tertius ... dies civiles nostros, etc., Varr. R. R. 1, 28, 1; cf. Plin. 2, 77, 79, § 188; Macr. S. 1, 3; Gell. 3, 2: REBVS IVRE IVDICATIS TRIGINTA DIES IVSTI SVNTO, XII. Tab. ap. Gell. 20, 1, 45; and 15, 13 fin.; for which; per dies continuos XXX., etc., Gai. Inst. 3, 78: multa dies in bello conficit unus, Enn. ap. Macr. S. 6, 2 (Ann. v. 297 ed. Vahl.); cf.: non uno absolvam die, Plaut. Capt. 3, 5, 73: hic dies, id. Aul. 4, 9, 11: hic ille est dies, id. Capt. 3, 3, 3: ante hunc diem, id. ib. 3, 4, 101: illo die impransus fui, id. Am. 1, 1, 98; cf.: eo die, Caes. B. G. 1, 22 fin.; 2, 6; 2, 32 fin.; 4, 11, 4; 5, 15 fin. et saep.: postero die, id. ib. 1, 15, 1; 3, 6, 3 et saep.; Cic. Verr. 2, 2, 17; Sall. J. 29, 5; 38, 9 et saep.: in posterum diem, Caes. B. G. 7, 41 fin.; id. B. C. 1, 65 fin. et saep.: diem scito esse nullum, quo die non dicam pro reo, Cic. Q. Fr. 3, 3: domi sedet totos dies, Plaut. Aul. 1, 1, 34: paucos dies ibi morati, Caes. B. G. 7, 5, 4: dies continuos XXX. sub bruma esse noctem, id. ib. 5, 13, 3: hosce aliquot dies, Ter. Heaut. 4, 5, 4; cf. id. Eun. 1, 2, 71 et saep.: festo die si quid prodegeris, Plaut. Aul. 2, 8, 10; so, festus, id. Cas. 1, 49; id. Poen. 3, 5, 13; 4, 2, 26 et saep.—
(b). Fem. (freq. in poetry metri gratiā; rare in prose), postrema, Enn. ap. Gell. 9, 14: omnia ademit Una dies, Lucr. 3, 912; cf. id. 3, 921; 5, 96 and 998: homines, qui ex media nocte ad proximam mediam noctem in his horis XXIV. nati sunt, una die nati dicuntur, Varr. ap. Gell. 3, 2, 2 (uno die, Macr. S. 1, 3): quibus effectis armatisque diebus XXX., a qua die materia caesa est, Caes. B. C. 1, 36 fin.: Varronem profiteri, se altera die ad colloquium venturum, id. ib. 3, 19, 4 (for which, shortly before: quo cum esset postero die ventum); cf.: postera die, Sall. J. 68, 2 (for which, in the same author, more freq.: postero die): pulchra, Hor. Od. 1, 36, 10: suprema, id. ib. 1, 13, 20: atra, Verg. A. 6, 429: tarda, Ov. M. 15, 868 et saep.—(But Caes. B. C. 3, 26, 1; 3, 37, 1, read altero, tertio.)—
b. Connections: postridie ejus diei, a favorite expression of Caesar, Caes. B. G. 1, 23, 1: 1, 47, 2; 1, 48, 2 et saep., v. postridie; and cf.: post diem tertium ejus diei, Cic. Att. 3, 7; Sulpic. ap. Cic. Fam. 4, 12, 2; Liv. 27, 35: diem ex die exspectabam, from day to day, id. ib. 7, 26 fin.; cf.: diem ex die ducere, Caes. B. G. 1, 16, 5; for which also: diem de die prospectans, Liv. 5, 48; and: diem de die differre, id. 25, 25: LIBRAS FARRIS ENDO DIES DATO, for every day, day by day, daily, XII. Tab. ap. Gell. 20, 1, 45; cf.: affatim est hominum, in dies qui singulas escas edunt, Plaut. Men. 3, 1, 10; so, in dies, every day, Cic. Top. 16, 62; Caes. B. G. 3, 23, 7; 5, 58, 1; 7, 30, 4; Vell. 2, 52, 2; Liv. 21, 11 Drak.; 34, 11 al.; less freq. in sing.: nihil usquam sui videt: in diem rapto vivit, Liv. 22, 39; cf.: mutabilibus in diem causis (opp. natura perpetua), id. 31, 29 (in another signif. v. the foll., no. II. A. 3); and: cui licet in diem ( = singulis diebus, daily) dixisse Vixi, etc., Hor. Od. 3, 29, 42. And still more rarely: ad diem, Treb. Gallien. 17; Vop. Firm. 4: ante diem, v. ante.—Die = quotidie or in diem, daily, Verg. E. 2, 42; 3, 34: quos mille die victor sub Tartara misi, id. A. 11, 397: paucissimos die composuisse versus, Quint. 10, 3, 8: saepius die, Plin. 15, 6, 6, § 22: die crastini, noni, pristini, quinti, for die crastino, nono, etc., v. h. vv. crastinus, nonus, etc.; and cf. Gell. 10, 24; Macr. S. 1, 4.—
B. In partic.
1. A set day, appointed time, term in the widest sense of the word (for appearing before court, in the army, making a payment, etc.).
(a). Masc.: MORBVS SONTICVS ... STATVS DIES CVM HOSTE ... QVID HORVM FVIT VNVM IVDICI ARBITROVE REOVE DIES DIFFISVS ESTO, XII. Tab. ap. Cic. Off. 1, 12; Fest. p. 273, 26 Müll.; for which: STATVS CONDICTVSVE DIES CVM HOSTE, acc. to Cincius ap. Gell. 16, 4, 4; and with comic reference to the words of this law, Plaut. Curc. 1, 1, 5 (found also in Macr. S. 1, 16); and freq.: status dies, Plin. Ep. 9, 39, 1; Suet. Claud. 1; Flor. 1, 13, 16 et saep.: hic nuptiis dictus est dies, Ter. And. 1, 1, 75; cf.: dies colloquio dictus est ex eo die quintus, Caes. B. G. 1, 42, 4; so, dictus, id. ib. 5, 27, 5: iis certum diem conveniendi dicit, id. ib. 5, 57, 2: die certo, Sall. J. 79, 4; cf. constituto, id. ib. 13 fin.: decretus colloquio, id. ib. 113, 3: praestitutus, Liv. 3, 22: praefinitus, Plin. 35, 10, 36, § 109; Gell. 16, 4, 3: ascriptus, Phaedr. 4, 11, 8 et saep.: quoniam advesperascit, dabis diem nobis aliquem, ut contra ista dicamus, Cic. N. D. 3, 40; Caes. B. G. 1, 16, 5; id. B. C. 1, 11, 2; Sall. J. 109, 3; Liv. 35, 35 et saep.: dies ater, an unlucky day, Sen. Vit. Beat. 25.—
(b). Fem. (so commonly in this sense in class. prose, but only in sing., v. Mützell ad Curt. 3, 1, 8): ut quasi dies si dicta sit, Plaut. As. 5, 1, 11; so, dicta, Cic. Fam. 16, 10 fin.; cf.: edicta ad conveniendum, Liv. 41, 10 fin.: praestituta, Plaut. Ps. 1, 3, 140; 2, 2, 28; Ter. Ph. 3, 2, 38; Cic. Verr. 2, 3, 14 fin.; id. Vatin. 15, 37; id. Tusc. 1, 39; Liv. 45, 11 et saep.; cf. constituta, Cic. Caecin. 11, 32; Caes. B. G. 1, 4, 2; 1, 8, 3: certa eius rei constituta, id. B. C. 3, 33, 1: pacta et constituta, Cic. Cat. 1, 9, 24: statuta, Liv. 31, 29: stata, id. 27, 23 fin.: certa, Caes. B. G. 1, 30, 4; 5, 1, 8; id. B. C. 1, 2, 6; Nep. Chabr. 3 et saep.: annua, Cic. Fam. 7, 23; id. Att. 12, 3 fin.; cf. longa, Plaut. Ep. 4, 1, 18: die caecā emere, oculatā vendere, i. e. to buy on credit and sell for cash, id. Ps. 1, 3, 67, v. caecus, no. II. B.: haec dies summa hodie est, mea amica sitne libera, an, etc., id. Pers. 1, 1, 34: puto fore istam etiam a praecone diem, Cic. Att. 13, 3: ubi ea dies venit (preceded by tempore ejus rei constituto), Caes. B. G. 7, 3: praeterita die, qua suorum auxilia exspectaverant, id. ib. 7, 77, 1; cf. id. ib. 6, 33, 4: esse in lege, quam ad diem proscriptiones fiant, Cic. Rosc. Am. 44, 128 et saep.—
(g). Both genders together: diem dicunt, qua die ad ripam Rhodani omnes conveniant: is dies erat a. d. V. Kal. Apr., etc., Caes. B. G. 1, 6 fin.; Cic. Att. 2, 11; id. Q. Fr. 3, 1, 3; Liv. 34, 35 al.—
b. Hence: dicere diem alicui, to impeach, lay an accusation against: diem mihi, credo, dixerat, Cic. Mil. 14, 36: Domitium Silano diem dixisse scimus, id. Div. in Caec. 20, 67.—
2. A natural day, a day, as opp. to night: ut vel, quia est aliquid, aliud non sit, ut Dies est, nox non est; vel, quia est aliquid, et aliud sit: Sol est super terram, dies est, Quint. 5, 8, 7: pro di immortales, quis hic illuxit dies, Cic. Fragm. ap. Quint. 9, 4, 76: credibile non est, quantum scribam die, quin etiam noctibus, in the daytime, id. Att. 13, 26: negat ullum esse cibum tam gravem, quin is die et nocte concoquatur, in a single day and night, id. N. D. 2, 9, 24; cf. in this signif.: die ac nocte, Plin. 29, 6, 36, § 113: nocte et die, Liv. 25, 39; and simply die, Hor. S. 2, 1, 4; Quint. 10, 3, 8; cf. also: currus rogat ille paternos, Inque diem alipedum jus et moderamen equorum, Ov. M. 2, 48; and, connected with nox: (Themistocles) diem noctemque procul ab insula in salo navem tenuit in ancoris, Nep. Them. 8 fin.; cf. Cic. Div. 2, 27, 59; Liv. 22, 1 fin.—But more freq.: diem noctemque, like our day and night, i. q. without ceasing, uninterruptedly; Caes. B. G. 7, 77, 11; 7, 42 fin.; id. B. C. 1, 62; for which less freq.: diem et noctem, Hirt. B. Hisp. 38, 1; diem ac noctem, Liv. 27, 4 and 45: noctemque diemque, Verg. A. 8, 94; cf. Quint. 9, 4, 23: continuate nocte ac die itinere, Caes. B. C. 3, 11, 1; 3, 36, 8; and in plur.: dies noctesque, Plaut. Rud. 2, 3, 49; Ter. Eun. 1, 2, 113; Cic. Att. 7, 9 fin.; Nep. Dat. 4, 4 et saep.; also, reversing the order: noctesque diesque, Enn. ap. Cic. de Sen. 1, 1 (Ann. v. 338 ed. Vahl.); Hor. S. 1, 1, 76: noctesque et dies, Ter. And. 4, 1, 52; id. Eun. 5, 8, 49: noctes atque dies, Lucr. 2, 12; 3, 62; Cic. Fin. 1, 16, 51; Verg. A. 6, 127 al.: noctes diesque, id. ib. 9, 488: noctes ac dies, Cic. Arch. 11, 29: noctes et dies, id. Brut. 90, 308; id. de Or. 1, 61, 260; id. Tusc. 5, 25 and 39; Ter. Eun. 5, 8, 49; cf. also: neque noctem neque diem intermittit, Caes. B. G. 5, 38: Galli dies ... sic observant, ut noctem dies subsequatur, id. ib. 6, 18, 2 Herz ad loc. So, too, in gen.: qui nocte dieque frequentat Limina, Mart. 10, 58, 11: cum die, at break of day, Ov. M. 13, 677: orto die ( = orta luce), Tac. A. 1, 20; 1, 68; id. H. 2, 21: ante diem ( = ante lucem), Hor. Ep. 1, 2, 35: dies fit, late Lat. for lucescit, Vulg. Luc. 22, 66: de die, in open day, broad day; v. de.—
3. Dies alicujus (like the Heb. ; v. Gesen. Lex. s. h. v.).
a. I. q. dies natalis, a birthday: diem meum scis esse III. Non. Jan. Aderis igitur, Cic. Att. 13, 42, 2; cf. in full: natali die tuo, id. ib. 9, 5 al. So the anniversary day of the foundation of a city is, dies natalis urbis, Cic. Div. 2, 47, 98.—
b. I. q. dies mortis, dying-day: quandocumque fatalis et meus dies veniet statuarque tumulo, Tac. Or. 13 fin. Called, also: supremus dies. Suet. Aug. 99; id. Tib. 67; cf.: supremus vitae dies, Cic. de Sen. 21, 78; Suet. Aug. 61. Hence: diem suum obire, to die, Sulp. in Cic. Fam. 4, 12, 2; and in the same sense: obire diem supremum, Nep. Milt. 7 fin.; id. Dion. 2 fin.; Suet. Claud. 1: exigere diem supremum, Tac. A. 3, 16: explere supremum diem, id. ib. 1, 6; 3, 76; and simply: obire diem, Plin. 2, 109, 112, § 248; Suet. Tib. 4; id. Vesp. 1; id. Gr. 3; cf. also: fungi diem, Just. 19, 1, 1.—
c. I. q. dies febris, fever-day: etsi Non. Mart., die tuo, ut opinor, exspectabam epistolam a te longiorem, Cic. Att. 9, 2 init.; 7, 8, 2 al.
II. Transf.
A. In gen. (from no. I. A.).
1. A day, for that which is done in it (cf. the Hebr. , the Gr. ἐλεύθερον ἦμαρ, etc.): is dies honestissimus nobis fuerat in senatu, Cic. Fam. 1, 2, 3: non tam dirus ille dies Sullanus C. Mario, id. Att. 10, 8, 7: equites Romanos daturos illius diei poenas, id. Sest. 12, 28: hic dies et Romanis refecit animos et Persea perculit, Liv. 42, 67 Drak.; cf. id. 9, 39 fin.; Vell. 2, 35 Ruhnk.; 2, 86; Just. 9, 3 fin.; Flor. 2, 6, 58 Duker.: imponite quinquaginta annis magnum diem, Tac. Agr. 34: quid pulchrius hac consuetudine excutiendi totum diem? ... totum diem mecum scrutor, facta ac dicta mea remetior, etc., Sen. de Ira, 3, 36: dies Alliensis, i. q. pugna Alliensis, Liv. 6, 1; Suet. Vit. 11: Cannensis, Flor. 4, 12, 35 al. And so even of one's state of mind on any particular day: qualem diem Tiberius induisset, what humor, temper, Tac. A. 6, 20. —
2. A day's journey: hanc regionem, dierum plus triginta in longitudinem, decem inter duo maria in latitudinem patentem, Liv. 38, 59; Just. 36, 2, 14 al.—
3. In gen. (like , ἡμέρα, and our day, for) time, space of time, period: diem tempusque forsitan ipsum leniturum iras, Liv. 2, 45; so with tempus, id. 22, 39; 42, 50: amorem intercapedine ipse lenivit dies, Turp. ap. Non. 522, 7; so in the masc. gender: longus, Stat. Th. 1, 638; Luc. 3, 139; but also longa, Plaut. Epid. 4, 1, 18; Plin. Ep. 8, 5 fin.; cf. perexigua, a brief respite, Cic. Verr. 1, 2 fin.: nulla, Ov. M. 4, 372 al.: ex ea die ad hanc diem quae fecisti, in judicium voco, Cic. Verr. 2, 1, 12 fin.: ut infringatur hominum improbitas ipsa die, quae debilitat cogitationes, etc., id. Fam. 1, 6; cf. id. ib. 7, 28 fin.; id. Tusc. 3, 22, 53 al.: indutiae inde, non pax facta; quarum et dies exierat, et ante diem rebellaverant, i. e. the term of the truce, Liv. 4, 30 fin.; 30, 24; 42, 47 fin. (for which: quia tempus indutiarum cum Veienti populo exierat, id. 4, 58).—Prov.: dies adimit aegritudinem, Ter. Heaut. 3, 1, 13: dies festus, festival-time, festival:—diem festum Dianae per triduum agi, Liv. 25, 23 et saep.: die lanam et agnos vendat, at the right time, Cato R. R. 150, 2: praesens quod fuerat malum, in diem abiit, to a future time, Ter. Ph. 5, 2, 16; so in diem, opp. statim, Q. Cic. Pet. cons. 12, 48; and simply in diem, Plaut. Mil. 3, 2, 48; Ter. Eun. 5, 7, 19; Cic. Cael. 24.—Esp. freq. in diem vivere, to live on from day to day, regardless of the future, Cic. de Or. 2, 40, 169; id. Tusc. 5, 11, 33; Plin. Ep. 5, 5, 4 et saep; cf. the equivoque with de die, under de.—
B. In partic. (acc. to no. I. B. 2—poet., and in postAug. prose).
1. Light of day, daylight: contraque diem radiosque micantes Obliquantem oculos, Ov. M. 7, 411; 5, 444; 13, 602: multis mensibus non cernitur dies, Plin. 33, 4, 21, § 70; Plin. Ep. 6, 20, 6; 9, 36, 2 al.; also of the eyesight, Stat. Th. 1, 237; and trop. of the conscience: saeva dies animi scelerumque in pectore Dirae, id. ib. 1, 52.—
2. For caelum, the sky, the heavens: sub quocumque die, quocumque est sidere mundi, Luc. 7, 189; 1, 153: incendere diem nubes oriente remotae, id. 4, 68; 8, 217; Stat. Th. 1, 201.—Hence, like caelum,
b. The weather: totumque per annum Durat aprica dies, Val. Fl. 1, 845: tranquillus, Plin. 2, 45, 44, § 115: mitis, id. 11, 10, 10, § 20: pestilens, id. 22, 23, 49, § 104.—
3. The air: nigrique volumina fumi Infecere diem, Ov. M. 13, 600: cupio flatu violare diem, Claud. in Ruf. 1, 63.
III. Dies personified.
A. I. q. Sol, opp. Luna, Plaut. Bacch. 2, 3, 21; coupled with Mensis and Annus, Ov. M. 2, 25.—
B. As fem., the daughter of Chaos, and mother of Heaven and Earth, Hyg. Fab. praef.; of the first Venus, Cic. N. D. 3, 23, 59.

Origins

Back-formed from the accusative diem (at a time when the vowel was still long), from Proto-Italic *djēm, the accusative of *djous, from Proto-Indo-European *dyḗws (“heaven, sky”). The original nominative survives as *diūs in two fossilised phrases: mē diūs fidius (an interjection) and nū diūs tertius (“day before yesterday”, literally “now (is) the third day”). The d in diēs is a puzzle with some suggesting dialect borrowing and others referring to an etymon *diyew- via Lindeman's Law. But note the possible Proto-Italic allophony between *-CjV- and *-CiV-, which may be the cause for this divergence (See WT:AITC). Cognate with Ancient Greek Ζήν (Zḗn), Old Armenian տիւ (tiw, “daytime”), Old Irish día, Welsh dydd, Polish dzień, but not English day, which is a false cognate. The Italic stem was also the source of Iovis, the genitive of Iuppiter and was generally interchangeable with it in earlier times, still shown by the analogical formation Diēspiter.

Northern Gallo-Romance
  • Frenchmidifrom Old French di
  • Frenchtoudisfrom Old French di
  • Frenchjadisfrom Old French di
  • Franco-Provençaldi
  • Picarddifrom Old French di
Insular Romance
  • Sardiniandie
  • Sardiniandì
Balkano-Romance
  • Romanianzi
  • Aromaniandzuã
  • Istro-Romanianzi
  • Megleno-Romanianzuuă
Italo-Dalmatian
  • Italiandìfrom Old Italian die
  • Dalmatiandai
  • Istriotdèi
  • Judeo-Italianדִיfrom Old Italian die
  • Venetandì
Rhaeto-Romance
  • Friuliandì
  • Ladindì
  • Ladindé
  • Romanshdi
  • Romanshgi
Gallo-Italic
  • Emiliandé
  • Lombarddì
  • Piedmontesedi
Southern Gallo-Romance
  • Old Occitandi
Borrowings
  • Albanianditë
Elsewhere
  • Vulgar Latin*dia

In the Academy Smith's classical dictionaries

AntiquitiesDiesDies (of the same root as δῖος and dens, Curtius, Gr. Etym. No. 269). The name dies was applied, like our word day, to the time during which, accordin…

Quick answers

What does diēs mean in Latin?
diēs, a noun, means “A solar or sidereal day of about 24 hours, especially (historical) Roman dates reckoned from one midnight to the next.; Daytime: a period of light between sunrise and sunset.; A set day: a date, an appointment.”.
What is the genitive of diēs?
The genitive singular is diēī. diēs is masculine, fifth declension.
How do you pronounce diēs?
In classical Latin, [ˈdi.eːs]; in ecclesiastical (church) Latin, [ˈdiː.es].