Aventail definition
Neck and shoulder mail that is attached to a helmet.
noun
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Other Word Forms
Noun
Singular:
aventail
Plural:
aventailsOrigin of aventail
- Middle English aventaille aventail, beaver of a helmet from Anglo-Norman probably alteration of esventail aventail from Old French esventer to let out air, ventilate from Vulgar Latin exventāre vent1
From American Heritage Dictionary of the English Language, 5th Edition