What is (a) A measure of yarn; for linen, 300 yards; for cotton, 120 yards; a lay. (b) A set of warp threads carried by a loop of the heddle called?

lea — (a) A measure of yarn; for linen, 300 yards; for cotton, 120 yards; a lay. (b) A set of warp threads carried by a loop of the heddle. (Webster's 1913.)

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