1580s, "sudden squall of wind," possibly a dialectal survival from Old Norse gustr "a cold blast of wind" (related to gusa "to gush, spurt") or Old High German gussa "flood," both from Proto-Germanic *gustiz, from PIE *gheus-, from root *gheu- "to pour." Probably originally in English as a nautical word.
1813, from gust (n.). Related: Gusted; gusting.
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