Signatory vs. Signator
Difference Between Signatory and Signator
One who signs or has signed something.John Hancock is famous for being the first signatory to the American Declaration of Independence, and for writing his name large.
A signatory: someone who signs something.
Relating to a seal; used in sealing.
Signing; joining or sharing in a signature.signatory powers
someone who signs and is bound by a document