A dialectal or archaic term for a fool or a despicable person, primarily used in Irish English.
From Irish Gaelic 'gaibheal' or related Celtic roots meaning a coward or wretch; the term entered English through Irish-English contact and regional dialect usage over centuries.
This word shows how Irish English has preserved insulting terms that have largely disappeared from standard English—it's a cultural artifact of how communities develop their own vocabulary for social criticism.
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