Dr. Johnson’s Dictionary

NU’NCIO. n.s. [Italian, from nuncio, Latin.]
I. A messenger; one that brings tidings.
She will attend it better in thy youth
Than in a nuncio of more grave aspect.  Shakespeare.
They honoured the nuncios of spring; and we find the
Rhodians had a solemn song to welcome in the swallow. Bro.
2. A kind of spiritual envoy from the pope.
This man was honoured with the character of nuncio
to the Venetians. Atterbury.