1. s. mercatura (especially of the merchant): mercatio (commercial transaction, buying and selling, Gell., 3, 3): negotium, or, plur., negotia (the business which anybody carries on, especially as corn-merchant or money-lender): commercium (commercial intercourse, Sall., Jug., 18, 6; Plin., 33, 1, 3; with anything, alicujus rei, Plin., 12, 14, 30; then also = freedom of trade). Wholesale trade, mercatura magna et copiosa: retail trade, mercatura tenuis. To carry on a trade, rem gerere: rem gerere et lucrum facere (of a lucrative business): mercaturam or (of several) mercaturas facere (especially of foreign trade): negotiari (by buying and selling; of money-lenders, corn-factors, etc.): to carry on a trade in anything, vendere or venditare aliquid: commercium alicujus rei facere (e.g., turis, Plin.). To carry on a large wholesale trade, mercaturam facere magnam et copiosam. To go to Tarentum for purposes of trade, abire Tarentum ad mercaturam: the spirit of trade, mercandi studium or cupiditas (Vid: Cic., De Rep., 2, 47): quaestus studium (desire of gain): the Roman merchants carry on a trade with Gaul, Romani mercatores ad Gallos commeant.