v.
 (past and past part. sold)
    - hand over (something) in exchange for money. 
▸deal in.
 ▸be subject to a specified demand on the market:
 the book didn't sell well.
  ▸
(sell out)
 sell all of one's stock of something.
 ▸
(sell up)
 Brit. sell all of one's possessions or assets.
 ▸
(sell oneself)
 have sex in exchange for money.
 - persuade someone of the merits of. 
▸
(sell someone on)
 make someone enthusiastic about.
 - 
(sell out)
 abandon one's principles for reasons of expedience. 
▸
(sell someone out)
 betray someone for one's own financial or material benefit.
 - archaic trick or deceive.
 
n.
 informal  - an act of selling or attempting to sell.
 - Brit. a disappointment.
 
 
  Phrase
  
    - sell someone/thing short
 fail to recognize or state the true value of someone or something.  - sell one's soul 
(to the devil)
 be willing to do anything, no matter how wrong it is, to achieve one's objective. 
   
  Derivative
  
  Etymology
  OE sellan (v.), of Gmc origin.