Webster's Revised Unabridged Dictionary · 1913

Impropriate

Impropriate , transitive verb

[Prefix im- in + Latin propriatus, past participle of propriare to appropriate. See Appropriate.]

1.
To appropriate to one's self; to assume. [Obsolete]
To impropriate the thanks to himself. — Bacon
2.
(Eng. Ecclesiastical Law) To place the profits of (ecclesiastical property) in the hands of a layman for care and disbursement.

Impropriate , intransitive verb

To become an impropriator. [Rare]

Impropriate , adjective

(Eng. Ecclesiastical Law) Put into the hands of a layman; impropriated.