Dregs

Chamber's Twientieth Century Dictionary · 1908 · p. 33

dregz, n.pl. impurities in liquor that fall to the bottom, the grounds: dro : the vilest part of anything.— ns. Dreg′gine , Dreg′gishne .— adj. Dreg′gy , containing dregs: muddy: foul. [Prob. Scand.; Ice. dreggjar .]