In Jewish usage: a non-Jewish person who performs for strictly Orthodox Jews tasks forbidden to them on the Sabbath, such as lighting domestic fires.
Shabbat goy/ʃaˈbat ɡɔɪ/ /ʃaˌbat ˈɡɔɪ/
Mid 19th century. From Shabbat + goy, after Yiddish shabes-goy Shabbos goy.
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