Lewis Short
(verb) : dē-spūmo, āvi, ātum, 1, and n. (perh. not ante-Aug.).
* Act.
* To skim off, to skim.
* Neutr., to cease foaming, to slacken, abate: ut nimius ille fervor despumet,Sen. Ira, 2, 20: cum aliquid lacrymarum affectus despumaverit,id. Ep. 99, 27: aetas,id. ib. 68fin.
* To deposit a frothy matter, Luc. 6, 506; Claud. in Prob. et Olyb. 54: Phoebe suppositas in herbas,Luc. 6, 506; cf.: despumantes suas confusiones,i. e. expressing by foaming,Vulg. Judae, 13.
Charlton T. Lewis, Charles Short, A Latin Dictionary