collocutor
noun
col·loc·u·tor
kəˈläkyətə(r),
kōˈ- ˈkäləˌkyütə(r)
plural -s
: a person to or with whom one speaks
Word History
Etymology
Italian & Late Latin; Italian collocutore, from Late Latin collocutor, from Latin collocutus (past participle of colloqui to converse, from com- + loqui to speak) + -or