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.
例文
1. Please don 't omit to lock the door when you leave.
離れるときはドアに鍵をかけるのを忘れないでください。
2.I 'll not wish to omit this valuable book from my reading.