rēgŭla — Lewis & Short
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.