As nouns the difference between promisor and offeror
is that promisor is one who engages or undertakes; a promiser while offeror is one who makes an offer to another.
promisor
English
Noun
(
en noun)
(legal) One who engages or undertakes; a promiser.
- (Burrill)
See also
* promisee
offeror
English
Noun
(
en noun)
One who makes an offer to another.
-
-
Someone who presents something to another for acceptance or rejection.