admityoudaoicibaDictYouDict[admit 词源字典]
admit: [15] This is one of a host of words, from mission to transmit, to come down to English from Latin mittere ‘send’. Its source, admittere, meant literally ‘send to’, hence ‘allow to enter’. In the 15th and 16th centuries the form amit was quite common, borrowed from French amettre, but learned influence saw to it that the more ‘correct’ Latin form prevailed.
=> commit, mission, transmit[admit etymology, admit origin, 英语词源]
admit (v.)youdaoicibaDictYouDict
late 14c., "let in," from Latin admittere "to allow to enter, let in, let come, give access," from ad- "to" (see ad-) + mittere "let go, send" (see mission). Sense of "to concede as valid or true" is first recorded early 15c. Related: Admitted; Admitting.