embassage

noun

em·​bas·​sage ˈem-bə-sij 

1

: the message or commission entrusted to an ambassador

2

archaic : embassy

Word History

Etymology

variant (with em- after embassador "ambassador" and other derivatives based on Romance forms with em- em- replacing am-) of ambassage, probably alteration (by substitution of the suffix -age) of ambassade "embassy, message entrusted to an envoy" — more at embassy

First Known Use

circa 1530, in the meaning defined at sense 1