- refund (v.)
- "to give back, restore," early 15c. (earlier "to pour back," late 14c.), from Old French refunder "restore," from Latin refundere "give back, restore," literally "pour back," from re- "back" (see re-) + fundere "to pour" (see found (2)). Specifically of money from 1550s. Related: Refunded; refunding.
- refund (n.)
- 1782, from refund (v.).