internuncio

noun

in·​ter·​nun·​cio ˌin-tər-ˈnən(t)-sē-ˌō 

-ˈnu̇n(t)-

1

: a messenger between two parties : go-between

2

: a papal legate of lower rank than a nuncio

Word History

Etymology

Italian internunzio, from Latin internuntius, from inter- + nuntius messenger

First Known Use

1622, in the meaning defined at sense 2