*טָחַף, (cmp. טחב) to be moist, soiled.—Part. pass. טָחוּף; fem. טְחוּפָה, pl. טְחוּפוֹת (of wool) dirty-white, gray, opp. לבנה bright-white. Ḥull. XI, 2; ib. 136ᵇ Ar. (ed. שחופות). [Cmp. Arab. ṭaḫf moeror, nubes.]