The story
- Medieval Latin · derived frombaccalārius
- Old French · derived frombacheler
- Middle English · inherited frombacheler
- English todaybachelor
From Middle English bacheler, from Anglo-Norman and Old French bacheler (modern French bachelier), from Medieval Latin baccalārius, baccalāris (compare Tuscan baccalare (“squire”)).
Etymology from Wiktionary, CC BY-SA 4.0.