מֵגֵף, (גָּפַף or גּוּף) sealer of wine vessels. Y. Ab. Zar. V, 44ᵈ top שיתומהון דרבנן מעשה מ׳ (not מעש) the boring of which the Rabbis speak (Mish. ib. V, 4) is the work of a professional sealer (requiring care and time).