collŏcūtĭo

ōnis, f.

colloquor

I. a (familiar or private) conversation, conference (very rare): hominum, Cic. Tusc. 1, 13, 30; id. Att. 12, 1, 2: venire cum aliquo in collocutionem, Auct. Her. 1, 15, 25.—In plur.: familiarissimae cum aliquo, Cic. Phil. 11, 2, 5: in sermonibus collocutionibusque aliquid videre, id. Fam. 1, 9, 4.
Lewis & Short
A Latin Dictionary, 1879
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