تَوْلَبٌ

, perfectly decl. [when used as a proper name as well as when used as an appellative], because it is of the measure فَوْعَلٌ; (Sb, S;) for we judge its ت to be a radical, and its و to be augmentative, because فَوْعَل is more common [as the measure of a noun] than تَفْعَل; (M;) but according to Suh, the ت is a substitute for و, and, if so, it should be mentioned in article ولب; (TA;) A young ass; synonym جَحْشٌ: (S, K:) or the foal of a wild ass, when he has completed a year. (M.) And أُمُّ تَوْلَب is an appellation given to The she-ass. (S.)

The former is sometimes metaphorically applied to (tropical:) A [young] man: (M:) or a boy. (S.)