c. 1400, "mutual understanding" (among persons), also (of things) "mutual conformity," from Old French agrement, agreement, noun of action from agreer "to please" (see agree). Attested in English by early 15c. as "formal or documentary agreement, terms of settlement."
"of or pertaining to sale, sales, or the business of selling," word-forming element from genitive of sale (n.), by 1520s, in salesman. Cf. saleswork "work done for sale" (1775). For earlier use of similar formations, compare craftsman, oarsman, both Middle English. Sales tax is attested by 1886; sales clerk by 1863; sales associate by 1946. Sales representative is from 1910.
supersonic passenger airliner operating from 1976 to 2003, from French concorde, literally "harmony, agreement" (see concord (n.)), reflecting the Anglo-French collaborative agreement that produced it.
1949, perhaps from Creole French pronunciation of French les haricots "the beans," part of the title of a popular dance tune ("les haricots sont pas salés").