possessioner
/pəˈzɛʃ(ə)nə/ /pəˈzɛʃ(ə)nə/noun
Specifically. A member of a religious order having temporal possessions or endowments; an endowed clergyman or ecclesiastic. Now historical.
Origin
Late Middle English (in an earlier sense). Either from Anglo-Norman possessioner possessor, owner, or directly from possession + -er.