enteryoudaoicibaDictYouDict[enter 词源字典]
enter: [13] Enter comes ultimately from a Latin preposition and adverb, intrā, which meant ‘inside’ (and was formed from in ‘in’ and the suffix -trā, as in extra). This was taken as the basis of a Latin verb, intrāre ‘enter’, which passed into English via Old French entrer. Of its derivatives, entry [13] has the longer history, going back to a Vulgar Latin *intrāta; entrance [16] is an Old French formation.
[enter etymology, enter origin, 英语词源]
enter (v.)youdaoicibaDictYouDict
late 13c. entren, "enter into a place or a situation; join a group or society" (trans.); early 14c., "make one's entrance" (intrans.), from Old French entrer "enter, go in; enter upon, assume; initiate," from Latin intrare "to go into, enter" (source of Spanish entrar, Italian entrare), from intra "within," related to inter (prep., adj.) "among, between" (see inter-). Transitive and intransitive in Latin; in French intransitive only. From c. 1300 in English as "join or engage in: (an activity);" late 14c. as "penetrate," also "have sexual intercourse" (with a woman);" also "make an entry in a record or list," also "assume the duties" (of office, etc.). Related: Entered; entering.