Definition of

Lather

  1. (noun, object) the foam resulting from excessive sweating (as on a horse)
  2. (noun, object) the froth produced by soaps or detergents
  3. (noun, person) a workman who puts up laths
  4. (noun, state) agitation resulting from active worry
    he's in a sweat about exams
  5. (verb, body) rub soap all over, usually with the purpose of cleaning
  6. (verb, body) exude sweat or lather
  7. (verb, change) form a lather
  8. (verb, contact) beat severely with a whip or rod
    The children were severely trounced

via WordNet, Princeton University

Origin of the word Lather

  1. O.E. lau?r "foam, washing soda," from P.Gmc. *lau?ran (cf. O.N. lau?r "washing soap, foam"), from PIE *loutrom (cf. Gaul. lautron, O.Ir. loathar "bathing tub," Gk. louein "to bathe," L. lavere "to wash"), which is from base *lou- "to wash" + instrumentative suffix *-tro-. Meaning "state of agitation" (such as… more

via Online Etymology Dictionary, ©2001 Douglas Harper

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