lew I. \ˈlü\adjective Etymology: Middle English lew, lewe lukewarm, warm, from Old English hlēow warm; akin to Old Norse hlȳr lukewarm — more at lee 1.now dialect Britain: moderately warm : lukewarm 2.now dialect Britain: lee II 1 II. noun (-s) now dialect Britain: a place of shelter : the side sheltered (as from the wind)