Definify.com
Webster 1913 Edition
Undersign
Unˊder-sign′
,Verb.
T.
To write one’s name at the foot or end of, as a letter or any legal instrument.
The undersigned
, the person whose name is signed, or the persons whose names are signed, at the end of a document; the subscriber or subscribers.
Definition 2024
undersign
undersign
English
Verb
undersign (third-person singular simple present undersigns, present participle undersigning, simple past and past participle undersigned)