Etymology From Middle English lesioun (“physical injuring of the body”), from Old French lesion (“hurt, offense, wrong, injury, wound”), from Latin laesiō (“hurt, harm, injury”) (whence -ion (“noun suffix denoting action, result, process, state, condition”)), from laesus (“hurt, injured, wounded, damaged”), past participle of laedō (“to strike, collide, hurt”).
Law Injury or an unfair imbalance in a commutative contract wherein the consideration is less than half of the market value, which then serves as a basis for the injured party to sue to rescind the agreement.
Etymology From Middle English lesioun (“physical injuring of the body”), from Old French lesion (“hurt, offense, wrong, injury, wound”), from Latin laesiō (“hurt, harm, injury”) (whence -ion (“noun suffix denoting action, result, process, state, condition”)), from laesus (“hurt, injured, wounded, damaged”), past participle of laedō (“to strike, collide, hurt”).
1
To wound or injure, especially in an experiment or other controlled procedure.