com-mercĭum | con-m- | commircĭum (noun N) : (; ante-class.; sometimes ‡ ; cf. Vel. Long. p. 2236 P.), , merx.
* Commercial intercourse, trade, traffic, commerce: mare magnum et ignara lingua commercia prohibebant,Sall. J. 18, 5; Plin. 33, 1, 3, § 7; Plin. Pan. 29; Tac. Agr. 24; Liv. 4, 52, 6: salis,id. 45, 29, 13: commercium hominum in locum aliquem mutui usus contrahunt,id. 38, 18, 12: neque Thraces commercio faciles erunt,id. 40, 58, 1: jus commercii,Dig. 49, 5, 6.
* Meton.
* In gen., intercourse, communication, correspondence, fellowship; lit. and trop.: quid tibi mecum est commerci, senex?Plaut. Aul. 4, 4, 4; id. Bacch. 1, 2, 9; id. Stich. 4, 1, 15: mihi cum vostris legibus Nihil est commerci,I have nothing to do with your laws,id. Rud. 3, 4, 20: commercium habere cum Musis,Cic. Tusc. 5, 23, 66: commercium habere cum virtute,id. Sen. 12, 42: dandi et excipiendi beneficii,Val. Max. 5, 3, ext. 3: agrorum aedificiorumque inter se,Liv. 45, 29, 10: plebis,with them,id. 5, 3, 8; 41, 24, 16: linguae,Ov. Tr. 5, 10, 35; Liv. 1, 18, 3; 9, 36, 6; 25, 33, 3: sermonis,id. 5, 15, 5; cf.: loquendi audiendique,Tac. Agr. 2 fin.: commercia epistularum,Vell. 2, 65, 1: hoc inter nos epistularum commercium frequentare,Sen. Ep. 38, 1: communium studiorum,Suet. Claud. 42: sortis humanae,Tac. A. 6, 19: belli,stipulation, treaty,id. ib. 14, 33: belli tollere,Verg. A. 10, 532; so, belli dirimere,Tac. H. 3, 81.—Plur.: est deus in nobis, et sunt commercia caeli,Ov. A. A. 3, 549.
* An article of traffic, merchandise, wares: commercia militaria,Plin. 35, 13, 47, § 168; for provisions, id. 26, 4, 9, § 18; cf. Front. 2, 5, 14.
* A place of trade, market - place: commercia et litora peragrare,Plin. 37, 3, 11, § 45; Claud. in Eutr. 1, 58.
* Esp., forbidden intercourse, illicit commerce: libidinis,Val. Max. 8, 2, 2: stupri,Suet. Calig. 36.—Absol.: cum eā mihi fuit commercium,Plaut. Truc. 1, 1, 77.
* In law, = collusio, Cod. Th. 3, 11, 4; cf. ib. 11, 4, 1 al.

s. TLL