Middle English, from Old English hlid; akin to Old High German hlit cover, and probably to Old English hlinian to lean
— more at lean
Date:
before 12th century
1: a movable cover for the opening of a hollow container (as a vessel or box)2:eyelid3: the operculum in mosses4slang:hat5: something that confines, limits, or suppresses :check, restraint6: an ounce of marijuana