Definition of stum in English:

stum

noun

  • Unfermented grape juice.

Pronunciation

stum

/stəm/

transitive verbtransitive verb stums, transitive verb stumming, transitive verb stummed

[with object]
  • 1Prevent or stop the fermentation of (wine) by fumigating a cask with burning sulfur.

  • 2Renew the fermentation of (wine) by adding stum.

Pronunciation

stum

/stəm/

Origin

Mid 17th century from Dutch stom (noun), stommen (verb), from stom ‘dumb’.