Find the word definition

The Collaborative International Dictionary
Subsigned

Subsign \Sub*sign"\, v. t. [imp. & p. p. Subsigned; p. pr. & vb. n. Subsigning.] [L. subsignare; sub under + signare to mark: cf. F. soussigner. See Sign.] To sign beneath; to subscribe. [R.]
--Camden.

Wiktionary
subsigned

vb. (en-past of: subsign)