prepurchase
1 of 2verb
pre·pur·chase ˌprē-ˈpər-chəs 
variants or pre-purchase
prepurchased or pre-purchased; prepurchasing or pre-purchasing
transitive verb
: to purchase (something) in advance
You can prepurchase tickets to pick up at the box office.
prepurchase
2 of 2adjective
variants or pre-purchase
: occurring before a purchase
prepurchase inspection of a used car
Word History
First Known Use
Verb
1868, in the meaning defined above
Adjective
1899, in the meaning defined above