ك • ن • ث • ب

and كُنْثُبٌ and كُنَاثِبٌ Hard and strong: (K:) but the ث in this case is corrupted from ت: see كُنْتُبٌ in art. كنب. (TA.)

[in the TA written كنابث] Sand pouring down. (IAar, K.)