What is the meaning of Stum?

Unfermented grape juice; must.

Wine revived by new fermentation, resulting from the admixture of must.

To ferment.

To renew (wine etc.) by mixing must with it and raising a new fermentation.

To fume, as a cask of liquor, with burning sulphur.

mute, not possessing the ability of speech

temporarily unable to speak due to strong emotion

not involving speech

inflection of stumt:

  1. second-person singular present indicative
  2. second-person singular imperative

second-person singular present indicative

second-person singular imperative

quiet, silent (also about pronunciation of letters)

speechless, mute (also about people)

mute

mute (unable to speak)

rigid (not flexing or stretching)

Source: wiktionary.org