omit (v.)youdaoicibaDictYouDict[omit 词源字典]
early 15c., from Latin omittere "let go, let fall," figuratively "lay aside, disregard," from assimilated form of ob (here perhaps intensive) + mittere "let go, send" (see mission). Related: Omitted; omitting.[omit etymology, omit origin, 英语词源]