thaw

v. 1 (often foll. By out) pass from a frozen into a liquid or unfrozen state. 2 (usu. Prec. By it as subject) (of the weather) become warm enough to melt ice etc. 3 become warm enough to lose numbness etc.

v. i. To melt, dissolve, or become fluid; to soften; -- said of that which is frozen; as, the ice thaws.