IMPRO'PRIATE, verb transitive [Latin in and proprius, proper.] 1. To appropriate to private use; to take to one's self; as, to impropriate thanks to one's self. [Not used.] 2. To annex the possessions of the church or a benefice to a layman. IMPRO'PRIATE, adjective Devolved into the hands of a layman.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI