تكبّبت الإِبِلُ
2.
تكبّب (tropical:) It (sand) became contracted (by reason of its moisture, TA,) into a compact mass: (S:) or became moist, and, in consequence, compact: whence كُبَّةُ غَزْلٍ [a ball of spun thread], as indicated by Z in the A. (TA.)