of·fer·er noun orof·fer·or\ˈȯf(ə)rə(r), ˈäf-\ (-s) Etymology: Middle English offerer, from offeren to offer + -er — more at offer 1.: one that offers : one that makes an offer or an offering < offerer of a bribe > < offerer of a sacrifice > 2.now usually offeror: one that communicates an offer (as of purchase) to another < offeror and offeree have agreed on terms of the contract >