From Middle English biturnen, from Old English *beturnian, betyrnan (“to turn around; bend the knee, prostrate oneself”), equivalent to be- + turn.
beturn (third-person singular simple present beturns, present participle beturning, simple past and past participle beturned)
- (transitive, intransitive) To turn round or about.
- (transitive, intransitive, reflexive) To turn around; turn back; return.
- 1821, The Retrospective review, and historical and antiquarian magazine:
- To their advises the disdaineful hart Of this audacious youth beturning plies, [...]