قأب1 قَأَبَ الطَّعَامَ, (As, S, O, K,) aor. ـَ inf. n. قَأْبٌ, (K,) He ate the food. (As, S, O, K.) b2: And قَأَبَ المَآءَ He drank the water; as also قَئِبَهُ: (K:) or he drank all the water that was in the vessel. (As, S, O, K.) b3:  And قَئِبَ مِنَ الشَّرَابِ, aor. ـَ inf. n. قَأْبٌ and قَأَبٌ, (K, TA,) the latter thus (مُحَرَّكَة), agreeably with analogy, (TA, [but in the CK قَآب,]) He became filled with the beverage; (Lth, K;) as also قَأَبَ مِنْهُ: (Lth:) or he drank the beverage: (TA:) and, or simply قَئِبَ, like صَئِبَ, (S,) he drank much water. (S, TA.) قَؤُوبٌ: see مِقْأَبٌ.إِنَآءٌ قَوْأَبٌ and ↓ قَوْأَبِىٌّ A vessel that takes, or receives, much water: (O, K:) the latter epithet expl. by Lth as signifying taking, or receiving, much. (L.) قَوْأَبِىٌّ: see what next precedes.مِقْأَبٌ (S, O, K) and ↓ قَؤُوبٌ (K) One who drinks much water: (S, O:) or one who drinks much. (K.)