n. [ L. despumatio: cf. F. despumation. ] The act of throwing up froth or scum; separation of the scum or impurities from liquids; scumming; clarification. [ 1913 Webster ]
n. [ L. desperatio: cf. OF. desperation. ]
This desperation of success chills all our industry. Hammond. [ 1913 Webster ]
In the desperation of the moment, the officers even tried to cut their way through with their swords. W. Irving. [ 1913 Webster ]