Kankaasi
Kankaasi is a term used in some Finnish dialects, particularly in the Savo region, to refer to a friend, pal, or buddy. It is a familiar and informal term, typically used between people who know each other well. The word itself is thought to be an onomatopoeic word, mimicking the sound of friendly chatter or a casual greeting.
While "ystävä" is the standard Finnish word for friend, "kankaasi" offers a more regional and colloquial flavor.
The precise etymology of "kankaasi" is not definitively established, but its connection to the Savo dialect