The story
- Old French · derived fromboitous“noisy”
- Anglo-Norman · derived frombustous“rough”
- Middle English · inherited fromboistous
- English todayboistous
From Middle English boistous, from Anglo-Norman bustous (“rough”), perhaps from Old French boitous (“noisy”) (the source of French boiteux).
Words from the same roots
Middle Englishboistous all →
boisterous
Old Frenchboitous all →
boisterous
Etymology from Wiktionary, CC BY-SA 4.0.