[frawth, froth]
  1. an aggregation of bubbles, as on an agitated liquid or at the mouth of a hard-driven horse; foam; spume.
  2. a foam of saliva or fluid resulting from disease.
  3. something unsubstantial, trivial, or evanescent: The play was a charming bit of froth.
verb (used with object)
  1. to cover with froth: giant waves frothing the sand.
  2. to cause to foam: to froth egg whites with a whisk.
  3. to emit like froth: a demagogue frothing his hate.
verb (used without object)
  1. to give out froth; foam: frothing at the mouth.

Origin of froth

1350–1400; Middle English frothe < Old Norse frotha froth, scum
Related formsfroth·er, nounout·froth, verb (used with object)un·frothed, adjectiveun·froth·ing, adjective

Synonyms for froth Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for frother


  1. a mass of small bubbles of air or a gas in a liquid, produced by fermentation, detergent, etc
  2. a mixture of saliva and air bubbles formed at the lips in certain diseases, such as rabies
  3. trivial ideas, talk, or entertainment
  1. to produce or cause to produce froth
  2. (tr) to give out in the form of froth
  3. (tr) to cover with froth
Derived Formsfrothy, adjectivefrothily, adverbfrothiness, noun

Word Origin for froth

C14: from Old Norse frotha or frauth; related to Old English āfrēothan to foam, Sanskrit prothati he snorts
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for frother



c.1300, from an unrecorded Old English word, or else from Old Norse froða "froth," from Proto-Germanic *freuth-. Old English had afreoðan "to froth," from the same root. The modern derived verb is from late 14c. Related: Frothed; frothing.

Online Etymology Dictionary, © 2010 Douglas Harper