رَسُوبٌ

[What is wont to sink, or subside, in water &c.

And hence,] Dregs amid water and blood: in this sense improperly pronounced رُسُوبٌ. (KL. [Golius, as on the same authority, explains it as meaning sedimentum aquæ, urinæ, etc.: hypostasis. See also the next paragraph.])

[Hence also,] (tropical:) A sword (S, M, A, K) that penetrates into, (S,) or that disappears in, (M, A, K,) the thing struck with it; (S, M, A, K;) and so ↓ رَسَبٌ (M, K) and ↓ رُسَبٌ (K, TA) and ↓ مِرْسَبٌ. (A, K, TA. [In the CK, by the omission of وَ after the last, this and the last but one are made to be appellations of a sword of Mohammad or of Soloman, and of a sword of El-Hárith Ibn-AbeeShemir.])

And (assumed tropical:) The glans of the penis: (M, K:) apparently because of its disappearance on the occasion of the act of جِمَاعِ. (M.)

And (assumed tropical:) Forbearing, or element; as also ↓ رَاسِبٌ. (K.)