Seems that we may be getting into the realm of singing what we believe to be "correct " without actually thinking what the words mean. Like "Wildwood Flower" , for instance, where the words don't actually make any sense but are sung that way because they always have been. I don,t believe kisso makes sense. To me pistol does make sense. But maybe RT can explain to me why it is kisso, and of course I am not claiming to know better than the writer of the song.