Lewis Short
(adjective) : princĭpālis, e, princeps.
* In gen., first, original, primitive (class.): causae,Cic. Fat. 5, 9: est igitur tropus sermo a naturali et principali significatione translatus ad aliam,Quint. 9, 1, 4: verba,Gell. 11, 15, 5.
* In partic.
* In rank, first in rank, station, or esteem, chief, principal: viri,App. Flor. p. 363, 38.—Of things abstr. and concr.: pici principales in auguriis,Plin. 10, 18, 20, § 41: principalia in Arabiā tus, et myrrha,id. 12, 13, 30, § 51: principalia aquatilium,id. 31, 6, 38, § 72: causarum aliae sunt perfectae et principales, aliae adjuvantes et proximae,Cic. Fat. 18, 41: quaestio,Quint. 4, 4, 1: post haec duo principalia subjungebat illa non minus intuenda,after these two principal points,Col. 1, 3, 3: principali studio (i. e. praecipuo),Gell. 13, 10, 1: principalia verba,primitive,id. 11, 15, 5: de culturā agri praecipere, principale fuit et apud exteros,a principal thing,Plin. 18, 3, 5, § 22: principalis obligatio, res (opp. accessio),Gai. Inst. 3, 126.—Comp.: principalior,Tert. Anim. 43: principaliora quaeque, id. cont. Marc. 4, 36.—As subst.: princĭpālis, is, m.
* The foremost, overseer, superintendent: officiorum, i. e. of attendants,Cod. Just. 9, 51, 1.
* Of or belonging to the principes, i. e. to the second line in the order of battle (post-class.), Cod. Th. 12, 1, 151; Veg. Mil. 2, 15, 1.
* Of or belonging to a prince or ruler, princely, imperial, the emperor's (post-Aug.): principalis quies,Vell. 2, 56, 3: fastigium,id. 1, 11, 6: opera,id. 2, 124, 3: curae,Plin. Pan. 79: copiae,id. ib. 82: apparatus arrogantiae principalis,id. ib. 76: beneficia,id. ib. 36: matrimonium,Tac. H. 1, 22: commentarii,id. ib. 4, 40: fortuna,id. ib. 2, 81: scortum,id. ib. 1, 13: majestas,Suet. Claud. 17: res,id. Calig. 39: bonum,Plin. 13, 3, 4, § 22: vox, Just. Inst. prooem. 3.
* In gen., chiefly, principally (post-class.): plurimae bestiae, sed principaliter leones,Sol. 27: negotium gerere,Dig. 3, 2, 4.
* In partic., like a prince, imperially (post-Aug.): gaudere,Sen. Cons. ad Polyb. 36: mores juventutis quam principaliter formas!Plin. Pan. 47: institutae leges,Arn. 1, 2, 2: non principaliter, incidentally, Mos. et Rom. Leg. Coll. 12, 7, 5.
Charlton T. Lewis, Charles Short, A Latin Dictionary