Where does “ჯუჭორდუნ” come from?

ჯუჭორდუნ (Laz) comes from Laz ჯეჭორდუნ, from Laz ჯე-, from Laz დვ-, from Laz -აშე — produces the tool name by appending it to the verb stem.

ჯუჭორდუნ (Laz): something that belongs to someone to break from top to bottom because of the weight on it