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treif

a. (alternative spelling of treyf English)

Wikipedia
Treif

Treif (טרײף) — also trayf, treyf, or tref — is the Yiddish word for any form of non- kosher food. The word is derived from the Hebrew טְרֵפָה ( terēfáh), but should not be confused with that other, more specific and technical term.