Refunder

Part of speech: noun

Definitions

1. An individual or business that returns money to customers following a product return or service cancellation
2. A party in charge of processing refunds for goods or services previously acquired
3. Someone or an organization that pays back money to customers after a purchase is reversed

Etymology: "Refunder" is a plain agent noun built by adding the suffix "-er" to "refund," meaning one who refunds. The suffix "-er" is one of English's most productive tools, attaching to verbs to name the person or thing that performs the action, as in "singer" or "driver." "Refund" itself comes from the Latin "refundere," meaning "to pour back" or "to pour out again," built from "re-" (back, again) and "fundere" (to pour). The original image was literal: liquid poured back into a vessel. Over time the sense shifted from pouring to giving back money, so a refund is money poured back to its owner.