ley1Pronunciation: /leɪ/ (also temporary ley)Definition of ley noun a piece of land put down to grass, clover, etc., for a single season or a limited number of years, in contrast to permanent pasture. Origin: Old English lǣge 'fallow' (recorded in lǣghrycg 'ridge left at the edge of a ploughed field'); related to lay1 and lie1