Origin: 1300–50;Middle Englishlegge, perhaps derivative of leggen to lay1; compare Middle High Germanlegge layer, edge, Old Englishlecg part of a weapon
c.1272, "crossbar on a door," perhaps from M.E. verb leggen "to place, lay" (see lay (v.)). Sense of "narrow shelf" is first recorded 1558; "shelf-like projection of rock" is from 1555.