- to cease or fail to remember; be unable to recall: to forget someone's name.
- to omit or neglect unintentionally: I forgot to shut the window before leaving.
- to leave behind unintentionally; neglect to take: to forget one's keys.
- to omit mentioning; leave unnoticed.
- to fail to think of; take no note of.
- to neglect willfully; disregard or slight.
- to cease or omit to think of something.
- forget oneself, to say or do something improper or unbefitting one's rank, position, or character.
Origin of forget
- (when tr, may take a clause as object or an infinitive) to fail to recall (someone or something once known); be unable to remember
- (tr; may take a clause as object or an infinitive) to neglect, usually as the result of an unintentional error
- (tr) to leave behind by mistake
- (tr) to disregard intentionally
- (when tr, may take a clause as object) to fail to mention
- forget oneself
- to act in an improper manner
- to be unselfish
- to be deep in thought
- forget it! an exclamation of annoyed or forgiving dismissal of a matter or topic
Word Origin and History for forget oneself
Old English forgietan, from for-, used here with negative force, "away, amiss, opposite" + gietan "to grasp" (see get). To "un-get," hence "to lose" from the mind. A common Germanic construction (cf. Old Saxon fargetan, Old Frisian forjeta, Dutch vergeten, Old High German firgezzan, German vergessen "to forget"). The literal sense would be "to lose (one's) grip on," but that is not recorded in any Germanic language. Related: Forgetting; forgot; forgotten.
Idioms and Phrases with forget oneself
Lose one's reserve, temper, or self-restraint; do or say something out of keeping with one's position or character. For example, A teacher should never forget herself and shout at the class. Shakespeare used it in Richard II (3:2): “I had forgot myself: am I not king?” [Late 1500s]