| weight Pronunciation: 'wAt Function: noun Etymology: Middle English wight, weght, from Old English wiht; akin to Old Norse v�tt weight, Old English wegan to weigh Date: before 12th century 1 a : the amount that a thing weighs 2 a : relative heaviness : b : the force with which a body is attracted toward the earth or a celestial body by gravitation and which is equal to the product of the mass and the local gravitational acceleration |