Lather
LATH-er
/ˈlæð.ər/
A frothy white mass of bubbles produced by soap or detergent mixed with water.
Emphasizes the creation of rich bubbles during washing; figuratively means a state of agitation.
The story behind the word. Lather traces back to Old English 'leaþor', which referred to soap or washing liquid. It shares ancient Proto-Germanic roots with words for washing. By the 16th century, it took on its modern sense of soapy foam, and later developed the figurative idiom 'in a lather' from sweating, agitated horses.
Word relationships
- froth: Froth refers broadly to foam on any liquid, like coffee or beer, not necessarily soap.
- foam: Foam covers synthetic or natural bubble masses, whereas lather usually implies soap and water.
- flatness: Flatness refers to a lack of bubbles or effervescence.
Commonly confused with
- Froth: Froth is general bubbles on liquids (like espresso), while lather involves soap surfactants.
Word family
- lathery (adjective): Resembling or covered with lather.
Collocations
- rich lather
- lather up
- creamy lather
- work into a lather
Idioms & expressions
- in a lather
Example sentences
- "Work the shampoo into a rich lather before massaging it into your scalp." Product instructions
- "Don't get yourself in a lather over minor delays; the train will arrive shortly." Idiomatic expression of distress
Memory hook
LATHER up the soap in the LATH-room (bathroom) shower! Bubbles made by soap and water.
When not to use
Do not confuse with plain water spray; lather requires soap/surfactant mixed with motion and liquid.
Fun facts
- Bubbles in lather are round because surface tension pulls liquid into the shape with the smallest surface area for a given volume.
- The phrase 'in a lather' comes from 19th-century horseback riding, referring to sweat foaming on an overworked horse.
Related words
Explore more words
shampoo, effervescent, effervescence, detergent, scrub, scour
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