Definition of stum in English:

stum

Syllabification: stum
Pronunciation: /stəm
 
/

noun

Unfermented grape juice.

verb (stums, stumming, stummed)

[with object] Back to top  
1Prevent or stop the fermentation of (wine) by fumigating a cask with burning sulfur.
2Renew the fermentation of (wine) by adding stum.

Origin

mid 17th century: from Dutch stom (noun), stommen (verb), from stom 'dumb'.

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