From Middle English belirten, bilurten, from Old English belyrtan (“to deceive”), equivalent to be- + lirt. Cognate with Scots belirt (“to jilt, beguile, deceive”).
belirt (third-person singular simple present belirts, present participle belirting, simple past and past participle belirted)
- (transitive, Britain dialectal, obsolete) To deceive; beguile.
- (transitive, Britain dialectal, obsolete) To cheat; befool.