The story
- Old French · derived frombarat“trickery, deception”
- Norman · derived fromBaraud
- Middle English · derived fromBaraud“quarrelsome”
- English todayBarrett
From the Irish surname converged from several origins, including Barόid, Bairéid, Middle English Baraud (“quarrelsome”) from Old English, and Norman Baraud, from Old French barat (“trickery, deception”).
Etymology from Wiktionary, CC BY-SA 4.0.