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"contemptible person, moocher," 1560s, from Hebrew, literally "bastard" (used in Vulgate), but modern usage is a recent borrowing from Yiddish.
"bastard," 1560s, from Late Latin mamzer, from Hebrew mamzer, left untranslated in Deut. xxiii:2 in the Vulgate.
[1562+; fr Yiddish fr Hebrew, ''bastard''; used in the 4th-century Latin Vulgate Bible; despite this ancient lineage, modern use is ordinary demotic Yiddish]