v. & n.
v.tr. 1 add a signature to (a document already signed by another). 2 ratify.
n. 1 a watchword or password spoken to a person on guard (cf. PAROLE). 2 a mark used for identification etc. counter-signature n.
[ F contresigner (v.), contresigne (n.) f. It. contrasegno (as COUNTER-, SIGN) ]