What's the difference between impresa and imprest?

Impresa

Definition:

• (n.) A device on a shield or seal, or used as a bookplate or the like.

Example Sentences:

Imprest

Definition:

• (n.) To advance on loan.
• (v. t.) A kind of earnest money; loan; -- specifically, money advanced for some public service, as in enlistment.

Example Sentences: