IPA: //ˈɒfərər//
KK: /ˈɔfərər/
A person or entity that presents something for acceptance or consideration, such as a proposal or an invitation.
The offerer presented a generous deal to the potential buyers.
Offerer → It is formed from "offer" (from Old French *oferir*, meaning to present or propose) and "-er" (meaning a person who). An offerer is a person who presents or proposes something.
Think of someone who is 'presenting' something — that's what an offerer does.