Where does “co-counselling” come from?

co-counselling (English) comes from English co, from English company, from Middle English companye, from Old French compaignie, from Old French compain, from Latin compāniō, from Latin com-, from Latin con- — resin, gum; to say, speak.

co-counselling (English): A form of self-help counselling in which each person takes equal turns, usually in pairs, to work on the things in themselves and their lives that they would like to change. This person is mostly or wholly in charge; the other person or people mainly give supportive attention, or suggest ways of wor