n.1 (usu. in pl.) a a sediment; grounds, lees, etc. b a worthless part; refuse (the dregs of humanity).
2 a small remnant (not a dreg).
Phrases and idioms:
drain (or drink) to the dregs consume leaving nothing (drained life to the dregs).
Derivatives:
dreggy adj. colloq.
Etymology: ME prob. f. ON dreggjar