LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

pius1

pius (feminine pia, neuter pium, comparative magis pius, superlative maximē pius or summē pius or piissimus or pīssimus or pientissimus or piissumus or pientissumus, adverb piē)
Classical[ˈpi.ʊs]Ecclesiastical[ˈpiː.us]
№ 748 of the 1,000 commonest wordsMille Verba core vocabulary

Meaning

  1. adjectivepious, devout
  2. adjectivedutiful, loyal, conscientious
    At ego faciam, tu idem ut aliter praedices, Amphitruo, piam et pudicam esse tuam uxorem ut scias. de ea re signa atque argumenta paucis verbis eloquar.Translation by Henry Thomas Riley But I'll make you, Amphitryon, to be holding other language; that you may understand that your wife is dutiful and chaste, upon that subject I will in a few words discover some tokens and some proofs. In the first place of all, Alcmena has given birth to two sons.c. 190 BCE – 185 BCE, Plautus, Amphitruo 5.1.33–36
  3. adjectivegood, blessed
  4. Late Latinadjectiveholy

Latīnē defined in Latin in our graded readers

quī deōs et parentēs colit; pius Aenēās.
pius -a -um — in Mille Verba, Deī et Sacra
quī deīs et parentibus dēbita solvit
pius -a -um — in Metamorphoses I, †

Declension

singular
formmasculinefeminineneuter
nominativepiuspiapium
genitivepiīpiaepiī
dativepiōpiaepiō
accusativepiumpiampium
ablativepiōpiāpiō
vocativepiepiapium
plural
formmasculinefeminineneuter
nominativepiīpiaepia
genitivepiōrumpiārumpiōrum
dativepiīspiīspiīs
accusativepiōspiāspia
ablativepiīspiīspiīs
vocativepiīpiaepia

Phrases from Meissner's Latin Phrase-Book

bellum iustum (pium)
a regular, formal war.
deos sancte, pie venerari
to be an earnest worshipper of the gods.
memoriam alicuius pie inviolateque servare
to show an affectionate regard for a person's memory.

pĭus (written PIIVS, Inscr. Viscont. Monum. Degli Scip. tab. 6, n. 1; cf. Cic. Quint. 1, 4, 11), a, um (voc. pie:
I. o crucifer bone, lucisator Omnipotens pie, Prud. Cath. 3, 1.—Comp. only magis pius; cf. Charis. pp. 88 and 130 P.—Sup.: piissimus, used by Antonius, and condemned by Cicero, as: verbum omnino nullum in linguā Latinā, Cic. Phil. 13, 19, 43; but freq. in the post-Aug. per., e. g. Sen. Contr. 4, 27 med.; id. Consol. ad Polyb. 26 med.; Tac. Agr. 43; Curt. 9, 6, 17; Flor. 4, 7, 15; Inscr. Orell. 418 et saep. From rare form PIENS, found in inscriptions, Murat. 1624, 4; Mus. Ver. 129, 3 Maff., is derived another form of the sup., PIENTISSIMVS, Inscr. Orell. 200; 203; 3592), adj. etym. dub.; often referred to τίω, τιμάω, that acts according to duty, dutiful; esp. that performs what is due to the gods and religion in general, to parrents, kindred, teachers, country; pious, devout, conscientious, affectionate, tender, kind, good, grateful, respectful, loyal, patriotic, etc. (of persons and things): si quis pius est, Plaut. Rud. prol. 26: uxor pia et pudica, id. Am. 5, 1, 33: Capus ... pium ex se Anchisen generat, Enn. ap. Philarg. ad Verg. G. 3, 35 (Ann. v. 31 Vahl.): (deos) piorum et impiorum habere rationem, Cic. Leg. 2, 7, 15; id. Rep. 6, 15, 15: di meliora piis, Verg. G. 3, 513: poëta, Cat. 16, 5: pii vates. Verg. A. 6, 662; cf.: pio vatis ab ore, Ov. F. 3, 326.—So as subst. freq. pĭi, of the departed, the blessed: piorum sedes, Cic. Phil. 14, 12: arva piorum, Ov. M. 11, 62: cf. Bentley on Hor. C. 3, 4, 6.—Of things having reference to religion: far, Hor. C. 3, 23, 20: tura, Ov. H. 7, 24; 21, 7: luci, sacred, holy, Hor. C. 3, 4, 6: pia et aeterna pax, a conscientiously kept and eternal peace, Cic. Balb. 16, 35: Poeni homines immolare pium esse duxerunt, id. Rep. 3, 9; cf. Ov. Tr. 1, 2, 96: ore pio, id. M. 7, 172; so, quosque pium est adhibere deos, id. F. 4, 829.— As subst.: pĭum, i, n.: stabit pro signis jusque piumque tuis, justice and equity, Ov. A. A. 1, 200; id. H. 8, 4.—Of respectful, affectionate conduct towards parents, etc.: pius in parentes, Cic. Off. 3, 23, 90: pius Aeneas, on account of his filial love for Anchises, Verg. A. 1, 220; 305; 378; 4, 393; 5, 26 et saep.; cf.: seniorque parens, pia sarcina nati, Ov. H. 7, 107; id. M. 7, 482: pius dolor, Cic. Sest. 2: impietate pia est, she is affectionate (towards her brothers) through want of affection (for her son), her sisterly triumphed over her maternal love, Ov. M. 8, 477: quo pius affectu Castora frater amat, id. Tr. 4, 5, 30: metus, of a wife for her husband, id. M. 11, 389: bellum, waged for one's country or allies, Liv. 30, 31; 39, 36; Sil. 15, 162.—
II. Transf., in gen.
A. Honest, upright, honorable (very rare): pius quaestus, Cato, R. R. praef.—
B. Benevolent, kind, gentle, gracious (postAug.): clementia patrem tuum in primis Pii nomine ornavit, M. Aurel. ap. Vulcat. Gallic. in Avid. Cass. 11: pius enim et clemens es, Dominus Deus, Vulg. 2 Par. 30, 9; id. Ecclus. 2, 13.—Pĭus, a title of the emperors after M. Antoninus, on coins and inscrr.; v. Eckh. D. N. 7, p. 36; 8, p. 453; Inscr. Orell. 840 sq.—Poet., of a wine-jar: testa, my kindly jar, = benigna, Hor. C. 3, 21, 4.—Hence, adv.: pĭē, piously, religiously, dutifully, affectionately: pie sancteque colere deos, Cic. N. D. 1, 20, 56; 1, 17, 45; id. Att. 6, 7, 1: memoriam nostri pie inviolateque servabitis, id. Sen. 22, 81: metuo ne scelerate dicam in te, quod pro Milone dicam pie, id. Mil. 38, 103: pie lugere, id. de Or. 2, 40, 167; Ov. H. 15, 153.—Sup.: quod utrumque piissime tulit, Sen. Cons. ad Polyb. 34, 4.

Origins

From Proto-Italic *pīos, from Proto-Indo-European *puHyós (“purifying”), from *pewH-.

Elsewhere
  • Italianpio
  • Frenchpieuxfrom Old French pius
  • Romanianpiosfrom Old French pius
  • Spanishpío
  • Englishpious
  • Sicilianpìu
Old Galician-Portuguese
  • Portuguesepio
  • Galicianpío
proper noun · masculinesecond declension
Pius2
Pius m (genitive Piī or Pī)
Classical[ˈpi.ʊs]Ecclesiastical[ˈpiː.us]

Meaning

  1. masculinea male given name, particularly as a regnal name of several popes of the Catholic Church
  2. masculinea cognomen, particularly of later Roman emperors

Declension

declension
formsingularplural
nominativePiusPiī
genitivePiī
Pī
Piōrum
dativePiōPiīs
accusativePiumPiōs
ablativePiōPiīs
vocativePīPiī

Origins

Substantivization of pius (“pious”)

Descendants
  • CatalanPius
  • FrenchPie
  • ItalianPio
  • PortuguesePio
  • SpanishPío
  • LithuanianPijus

In the Academy Smith's classical dictionaries

Quick answers

What does pius mean in Latin?
pius, a adjective, means “pious, devout; dutiful, loyal, conscientious; good, blessed”.
How do you pronounce pius?
In classical Latin, [ˈpi.ʊs]; in ecclesiastical (church) Latin, [ˈpiː.us].