Other forms: omitted, omitting, omits
To omit is to leave something out, by accident or by choice. Omit the detail, omitted from the list, omit to mention.
The two possibilities are the whole difficulty: an omission may be an oversight or a decision, and in law the difference decides whether it is negligence or concealment. Omit to do something is the formal construction. Note that the Latin means to let go, from mittere, to send.
1verbomitTo leave something out.
“Please don't omit any details from your report, however small.”
omit is a leaving out.
Also accepted in games: leave out
Latin omittere is ob plus mittere, to send or let go. Mission, admit and permit come from the same sending.
Proto-Indo-European
*mey- (change)
Latin
omittō — to let go
Middle English
omitten
English, today
omit
Built from
At least by 1422, from late Middle English omitten, borrowed from Latin omittō (“to let go”), from ob- + mittō (“to send”), but also had the connotations “to fail to perform” and “to neglect”.
Etymology from Wiktionary, CC BY-SA