c.1300, from O.N. froða, from Gmc. *freuth-. O.E. had afreoðan "to froth," from the same root. The modern derived verb is from late 14c. Related: Frothed; frothing.
n. a beer. : How about another pitcher of frost, innkeeper?
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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