עֵרֶף, pl. עֲרָפִין, substitute for עֲרָכִין, v. עֵרֶךְ. Y. Ned. I, beg. 36ᶜ ואילו תנינן … ע׳ ערצין ערקין but if we were to teach (substitutes for ʿărakhin), what would we teach? ʿĂrafin, ʿăratsin, ʿăraḳin