Definition of grouts in English:

grouts

plural noun

archaic
  • Sediment, dregs, or grounds.

    ‘old women told fortunes in grouts of tea’
    mud, muck, mire, ooze, silt, alluvium, dirt, slime, slush, slurry
    View synonyms

Origin

Old English grūt, of Germanic origin; related to Dutch gruit ‘dregs’, German Grauss ‘grain, weak beer’, also to grits and groats. The original meaning was ‘coarse meal, groats’, also denoting the infusion of malt which was fermented to make beer, hence, in Middle English, ‘sediment’.

Pronunciation

grouts

/ɡraʊts/