IPA: //ˈprɛɪər//
KK: /ˈprɛɪər/
A person or animal that hunts or attacks others for food or to take advantage of them.
The lion is a preyer that hunts for its meals in the savannah.
The word 'preyer' originates from the Old French 'preier' (meaning to pray) and is related to the Latin 'precari' (meaning to beseech or pray). A 'preyer' is someone who prays or beseeches.
Think of someone who 'prays' ('preier') — that's why a 'preyer' is a person who prays.