COUNTERSIGN
countersign, countersignature
(noun) a second confirming signature endorsing a document already signed
password, watchword, word, parole, countersign
(noun) a secret word or phrase known only to a restricted group; “he forgot the password”
countersign
(verb) add one’s signature to after another’s to attest authenticity; “You must countersign on this line of the contract”
Source: WordNet® 3.1
Etymology
Noun
countersign (plural countersigns)
(law) A second signature added to a document to affirm the validity of the signature of the first person.
The response to a sign or signal.
Verb
countersign (third-person singular simple present countersigns, present participle countersigning, simple past and past participle countersigned)
(transitive) To sign on the opposite side of (a document).
(transitive, by extension) To add a second signature to a document, affirming the validity of the signature of another person.
Anagrams
• countersing, recountings
Source: Wiktionary
Coun`ter*sign" (-sn`; 277), v. t. [imp. & p. p. Countersigned (-
snd`); p. pr. & vb. n. Countersigning.] Etym: [Counter- + sign: cf.
F. contresigner.]
Definition: To sign on the opposite side of (an instrument or writing);
hence, to sign in addition to the signature of a principal or
superior, in order to attest the authenticity of a writing.
Coun"ter*sign`, a.
1. The signature of a secretary or other officer to a writing signed
by a principal or superior, to attest its authenticity.
2. (Mil.)
Definition: A private signal, word, or phrase, which must be given in order
to pass a sentry; a watchword.
Source: Webster’s Unabridged Dictionary 1913 Edition