διαλέγεσθαι
From LSJ
Greek > English (Woodhouse Verbs Reversed)
(see also διαλέγω): talk, converse with, have speech with, speak with, talk to, confer, confer with, have conference, have conference with
Lexicon Thucydideum
colloqui, to converse together, have a conference, 5.59.5, (in colloquio dixerunt, they said in the conference) 6.57.2, 8.93.2.