Etymology: Middle English, from Old English sellan; akin to Old High German sellen to sell, Greek helein to take
Date: before 12th century
transitive verb1: to deliver or give up in violation of duty, trust, or loyalty and especially for personal gain :betray —often used with out<sell out their country> 2 a (1): to give up (property) to another for something of value (as money) (2): to offer for sale b: to give up in return for something else especially foolishly or dishonorably <sold his birthright for a mess of pottage>c: to exact a price for <sold their lives dearly> 3 a: to deliver into slavery for money b: to give into the power of another <sold his soul to the devil>c: to deliver the personal services of for money 4: to dispose of or manage for profit instead of in accordance with conscience, justice, or duty <sold their votes> 5 a: to develop a belief in the truth, value, or desirability of : gain acceptance for <trying to sell a program to the Congress>b: to persuade or influence to a course of action or to the acceptance of something <sell children on reading> 6: to impose on :cheat 7 a: to cause or promote the sale of <using television advertising to sell cereal>b: to make or attempt to make sales to c: to influence or induce to make a purchase 8: to achieve a sale of <sold a million copies>intransitive verb1: to dispose of something by sale <thinks now is a good time to sell> 2: to achieve a sale; also: to achieve satisfactory sales <hoped that the new line would sell> 3: to have a specified price
— sell·able\ˈse-lə-bəl\adjective
— sell down the river: to betray the faith of
— sell short1: to make a short sale 2: to fail to value properly :underestimate