From Middle English forleven, equivalent to for- + leave. Cognate with Old High German firleiban.
forleave (third-person singular simple present forleaves, present participle forleaving, simple past and past participle forleft)
- (transitive, intransitive, obsolete) To depart from (someone); leave (someone) behind; abandon; forsake; desert; give up; relinquish.
- 1475, Hilton:
- In a lityll I forlefte the.