كرفأQ. 1 كَرْفَأَتِ القِدْرُ The pot frothed, or raised a scum, when about to boil. (S, K.) A2: كَرْفَأَ, inf. n. كَرْفَأَةٌ; and ↓ تكرفأ; (like كرثأ and تكرثأ, K, which are said to be changed from the former; TA;) It (a collection of clouds) became large in quantity, and confused, and heaped up. (K.) b2:  كَرْفَؤُوا They became mixed together. (K.) Q. 2 تَكَرْفَاَ see 1.كِرْفِئٌ i. q. كِرْثِئٌ; (K;) Clouds high and piled up, one upon another. (S) And كِرْفِئَةٌ A portion of such clouds. (S.) b2:  كِرْفِئٌ An egg-shell. (A'Obeyd, S.) It occurs again in art. كرف. (TA.) كِرْفِئَةٌ A ceratin tree, also called شَفَلَّحٌ. (K.)