/ ˈlɑːðə(r); NAmE ˈlæð-/ noun , verb
■ noun
[ U , sing. ] a white mass of small bubbles that is produced by mixing soap with water
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IDIOMS
- get into a lather | work yourself into a lather
- in a lather
■ verb
1.
[ vn ] to cover sth with lather :
I lathered my face and started to shave.
2.
[ v ] to produce lather :
Soap does not lather well in hard water.
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WORD ORIGIN
Old English læthor (denoting washing soda or its froth), lēthran (verb), of Germanic origin; related to Old Norse lauthr (noun), from an Indo-European root shared by Greek loutron bath.