LATIN DICTIONARYLexicon Latīnum
noun · femininefirst declension

rēgula

rēgula f (genitive rēgulae)
Classical[ˈreː.ɡʊ.ɫa]Ecclesiastical[ˈrɛː.ɡu.la]

Meaning

  1. rule, bar
  2. ruler (measuring or drawing device)

Latīnē defined in Latin in our graded readers

Declension

declension
formsingularplural
nominativerēgularēgulae
genitiverēgulaerēgulārum
dativerēgulaerēgulīs
accusativerēgulamrēgulās
ablativerēgulārēgulīs
vocativerēgularēgulae

Lewis & Short A Latin Dictionary, 1879

rēgŭla, ae, f. rego,
I. a straight piece of wood, ruler, rule (class.; cf.: norma, libella).
I. Lit.: atque si id crederemus, non egeremus perpendiculis, non normis, non regulis, Cic. Fragm. ap. Non. 163, 2; cf. (with linea): perpendiculum, and norma, Vitr. 7, 3: materiam ad regulam et libellam exigere, Plin. 36, 25, 63, § 188; Col. 3, 13, 11 sq.: hoc cum regulā exploraveris aequale, Pall. 1, 9, 2.—
B. Transf.
1. A straight staff; in gen., a stick, lath, bar (of wood or iron): quadratas regulas, quattuor patentes digitos, defigunt, Caes. B. C. 2, 10; Front. Strat. 3, 13, 6; Col. 6, 19, 3; 6, 26, 2; 12, 50, 10; Plin. 15, 1, 2, § 5; Cels. 8, 10; Vitr. 5, 10; Stat. Th. 6, 594: aurea, an ingot of gold, Vulg. Josue, 7, 21.—
2. A measuringrod: in regulā, in pondere, Vulg. Lev. 19, 35.—
3. In mechanics.
a. Plur., the two cheeks on each side of the channel in which the dart of the catapult lay; also called bucculae, Vitr. 10, 12.—
b. The shank of a triglyph, Vitr. 4, 3.—
c. The disks of an oilpress: quod si regulis olea prematur, et praelum et suculam et regulas dominum parare oportere, Dig. 19, 2, 19, § 2.—
II. Trop., a rule, pattern, model, example (cf.: formula, praescriptio): fontem omnium bonorum in corpore esse: hanc normam, hanc regulam, hanc praescriptionem esse naturae, Cic. Ac. 2, 46, 140: regula, ad quam eorum dirigantur orationes, qui, etc., id. Opt. Gen. 7 fin.; id. Fin. 1, 19, 63: regula, quā vera et falsa judicarentur, id. Brut. 41, 152: nos studia nostra nostrae naturae regulā metiamur, id. Off. 1, 31, 110: (lex est) juris atque injuriae regula, id. Leg. 1, 6, 19: regula totius philosophiae, id. Ac. 2, 9, 29; cf. id. N. D. 1, 16, 43: pravissima consuetudinis regula, id. Brut. 74, 258: mediocritatis regula, id. Off. 2, 17, 59: omnium una regula est, id. ib. 3, 31, 81: emendate loquendi regula, Quint. 1, 5, 1; so, loquendi, id. 1, 7, 1: sermonis, id. 1, 6, 44: morum, Mart. 11, 2, 3 et saep.: ad legem ac regulam compositum esse, Quint. 12, 10, 50; cf.: locuti sunt ad hanc regulam, id. 9, 4, 4: habeo regulam, ut talia visa vera judicem, Cic. Ac. 2, 18, 58: assit Regula, peccatis quae poenas irroget aequas, Hor. S. 1, 3, 118: secundam regulam nostram, Vulg. 2 Cor. 10, 15; cf. id. ib. v. 13, 16; id. Phil. 3, 16.—In plur. (only late Lat.), Gai. Inst. 3, § 142; Cod. Just. 1, 17, 2, § 10; Arn. 1, n. 59: regulae credendi, Aug. Doctr. Chr. 4, 9 init.

Origins

  1. Proto-Indo-European*h₃reǵ-
  2. Proto-Indo-European*h₃réǵeti
  3. Proto-Italic*regō
  4. Latinrēgula

Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Indo-European *-tlom, *-dʰlom Latin -ula Latin rēgula From regō (“to rule, govern”) + -ula.

Later borrowings
  • Catalanrègula
  • Frenchrègle
  • Italianregola
  • Portugueseregra
  • Portugueserégua
  • Romanianregulă
  • Spanishregla
  • Albanianrregull
  • Asturianregla
  • Galicianregra
Insular Romance
  • Sardinianregra
  • Sardinianarregra
  • Sardinianrega
  • Sardinianregia
  • Sardinianreja
Ibero-Romance
  • Portugueserelhafrom Old Galician-Portuguese relha
  • Spanishrejafrom Old Spanish rexa
  • Catalanreixafrom Old Spanish rexa
  • Aragoneserella
  • Asturianreya
  • Extremaduranarreya
  • Galicianrellafrom Old Galician-Portuguese relha
  • Galicianreixafrom Old Galician-Portuguese relha
Italo-Romance
  • Italianreglio
  • Italianregale
Gallo-Italic
  • Italianreggiafrom Lombard reigia
  • Italianreggettafrom Lombard reigia
  • Romagnolrégula
Northern Gallo-Romance
  • Frenchreillefrom Old French reille
  • Frenchrillefrom Old French reille
Southern Gallo-Romance
  • Catalanrella
  • Occitanrelha
Rhaeto-Romance
  • Romanshregla
Ancient borrowings
  • Berbertirigliwin
  • Koine Greekῥῆγλᾰ
  • Old Irishríagol
  • Old Irishríagul
  • Bretonreolfrom Proto-Brythonic *rreɣol
  • Cornishrewlfrom Proto-Brythonic *rreɣol
  • Welshrheolfrom Proto-Brythonic *rreɣol
  • Proto-West Germanic*regulu