apikoros n. Yiddish (ah-peh-KAY-riss) A religious heretic or skeptic; one who doesn’t believe. The term was first used in the Mishnah to refer to a Jew who renounced the Torah. Apikoros is a Yiddish variation of Epicurus, the Greek philosopher who championed the pursuit of sensual pleasures.
Eisenberg, J., Scolnic, E., & Jewish Publication Society. (2001). The JPS dictionary of Jewish words. Over 1000 entries for Jewish holidays and life-cycle events, culture, history, the Bible and other sacred texts, and worship. Each entry has a pronunciation guide and is cross-referenced to related terms.; “A JPS desk reference”–cover. (7). Philadelphia, PA: Jewish Publication Society.