Purchase is defined as to obtain something by paying for it.(verb)
An example of to purchase is to buy food at the grocery store.
The definition of a purchase is something bought or paid for.(noun)
An example of a purchase is a pair of pants for which someone paid $10.
See purchase in Webster's New World College Dictionary
Origin: ME purchacen < OFr pourchacier, to pursue < pour, for (< L pro: see pro) + chacier, to chase
See purchase in American Heritage Dictionary 4
transitive verb pur·chased, pur·chas·ing, pur·chas·es
Origin: Middle English purchasen, to pursue, purchase
Origin: , from Old French purchacier
Origin: : pur-, forth (from Latin prō-; see per1 in Indo-European roots)
Origin: + chacier, to chase; see chase1.
Learn more about purchase