coupleyoudaoicibaDictYouDict[couple 词源字典]
couple: [13] The notion underlying couple is of ‘joining’. The noun came into English via Old French from Latin cōpula ‘tie, connection’. This was a compound noun formed from the prefix com- ‘together’ and the verb apere ‘fasten’ (source of English apt, adapt, adept, and inept). Derived from it was the verb cōpulāre, source of English copulate [17].
=> adapt, adept, apt, copulate, inept[couple etymology, couple origin, 英语词源]
couple (v.)youdaoicibaDictYouDict
c. 1200, from Old French copler, from cople (see couple (n.)). Related: Coupled; coupling.
couple (n.)youdaoicibaDictYouDict
late 13c., from Old French cople "married couple, lovers" (12c., Modern French couple), from Latin copula "tie, connection," from PIE *ko-ap-, from *ko(m)- "together" + *ap- "to take, reach." Meaning broadened mid-14c. to "any two things."