The word "redemption" refers to the act of saving or being saved from sin, error, or evil. It can also mean the act of regaining possession of something in exchange for payment or the fulfillment of a debt. In a broader sense, it relates to the idea of reclaiming something valuable or restoring it to its rightful state.
The word "redemption" comes from the Latin "redemptio," which means "a buying back." It is derived from "redimere," meaning "to buy back" (from "re-" meaning "back" and "emere," meaning "to buy").