undersigned

adjective

1. being the one or ones whose signature appears at the end of a letter or document: All of the undersigned persons are bound by the contract.
2. signed at the bottom or end of, as a writing: The undersigned names guarantee the good faith of the statement.

noun

3. the undersigned, the person or persons signing a letter or document.

verb (used with object)

1. to sign one’s name under or at the end of (a letter or document); affix one’s signature to.

noun

1. the undersigned the person or persons who have signed at the foot of a document, statement, etc

adjective

2. having signed one’s name at the foot of a document, statement, etc
3. (of a document) signed at the foot
4. signed at the foot of a document

v.1570s, from under + sign (v.). Related: Undersigned; undersigning.