Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class V. Words Releasing to the Voluntary Powers
Division (II) Intersocial Volition
Section IV. Possessive Relations
3. Interchange of Property

795. Purchase.

   NOUN:PURCHASE, emption [rare]; buying, purchasing, shopping; preëmption, refusal.
  coemption [Rom. law]; bribery; slave trade.
  BUYER, purchaser, emptor [law], coemptor, vendee; client, customer, clientele, clientage; patron, employer.
   VERB:BUY, purchase, invest in, regrate, procure rent (hire) [See Borrowing]; repurchase, buy in.
  make -, complete- a purchase; buy over the counter; pay cash for; charge, – to one’s account.
  shop, market, go a-shopping.
  keep in one’s pay, bribe, suborn; pay [See Payment]; spend [See Expenditure].
   ADJECTIVE:purchased &c. v.; emptorial, coemptional, coemptive; cliental.
   QUOTATION:Caveat emptor.