Added 9 October 2026
boisterous
/ˈbɔɪstəɹəs/ adjective
In Latin: bacchabundus Wiktionary
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about boisterous at Wordnik → Where our words come from →
Origin
From Middle English boistres, an alteration of Middle English boistous (“crude, unrefined”), of uncertain origin. Likely from Anglo-Norman boystous, bustous (“rough, in a crude state, disabled, paralysed, unable to walk, lame”), Old French boitous (“limping; having a rough, uneven surface”).
From Wiktionary, via Kaikki.org (CC BY-SA)