IPA: /əˈkwɪzɪtər/
KK: /əˈkwɪzɪtər/
A person or entity that obtains or gains possession of something, often through purchase or effort.
The acquisitor was praised for successfully obtaining the rare artifact.
Acquisitor is formed from "acquirere" (meaning to acquire) and the suffix "-or" (meaning one who). The word refers to one who acquires or obtains something.
Think of someone who is 'acquiring' ('acquirere') something — that's why an 'acquisitor' is one who acquires.