collogue

juonitella puhekieltä To talk privately or secretly; to conspire
1937, (w), (w)

"Ay, well, what I say - " Flusky frowned, endeavouring to put into words just what he did say, when he collogued with his own thoughts. "What I say: in a country where everything's to do, the hands has a chance to put themselves equal with the head. ..."

You let Dunsey have it, sir? And how long have you been so thick with Dunsey that you must collogue with him to embezzle my money?