REFUND', verb transitive [Latin refundo; re and fundo, to pour.] 1. To pour back. Were the humors of the eye tinctured with any color, they would refund that color upon the object. [Unusual or obsolete.] 2. To repay; to return in payment or compensation for what has been taken; to restore; as, to refund money taken wrongfully; to refund money advanced with interest; to refund the amount advanced.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI