There are such words that are quite usable in ancient sources and in modern speech, but at the same time the difference in their meaning is so great that it can create a comic effect. When in the twelfth century the rebellious Kievans pronounce “not if it were an axe in the ass,” they mean by no means a known part of the human body and not even their evil position, as the modern reader would think, but they declare a reluctance to turn into hereditary possession, transferred from one prince from the Olgovich family to another. Ancient Russian "shoulder" is nothing more than a quite correct legal term, meaning inheritance or property subject to inheritance, a term used not only in chronicles, but also in legislative collections, for example in Russian Truth.