[f. COUNTER-SIGN and SIGNATURE.] The action of countersigning; a signature added to another persons signature on a document, for authentication or confirmation: see COUNTERSIGN v. 1.
1842. Whately, in Life (1866), II. 17. The form of counter-signature is my usual one.
1883. Bankruptcy Rules, R. 73. For the purpose of his counter-signature to the order being written thereon.