Ecclesiastical vs Impropriate - What's the difference?

As an adjective ecclesiastical

is of or pertaining to the church.

to appropriate.

* ecclesiasticall (obsolete)

(en adjective)

Of or pertaining to the church

ecclesiastical architecture

* (l) * ecclesiastic (less common)

(impropriat)

(obsolete) to appropriate.

* Francis Bacon

to impropriate the thanks to himself

In ecclesiastical law, to place ecclesiastical property under control or management of a layperson.

* impropriator