英语词源字典 - 在线词源网站

pair (v.)[pair 词源字典]: "to come together with another; be mated or married" (intransitive), also "to make a pair by matching" (transitive), c. 1600, from pair (n.). These senses now often are distinguished by pair off (c. 1803) for the former and pair up (1908) for the latter. Related: Paired; pairing.[pair etymology, pair origin, 英语词源]