The Collaborative International Dictionary
Truchman
Truchman \Truch"man\, n. [Cf. F. trucheman. See Dragoman.] An interpreter. See Dragoman. [Obs.]
And after, by the tongue,
Her truchman, she reports the mind's each throw.
--B.
Jonson.
Wiktionary
truchman
n. (cx archaic English) An interpreter.