Where does “kartilago” come from?

kartilago (Indonesian) comes from Latin cartilāgō, from Proto-Indo-European kert-, from Proto-Turkic *keŕ- — to travel, tour.

kartilago (Indonesian): cartilage: A usually translucent and somewhat elastic, dense, nonvascular connective tissue found in various forms in the larynx and respiratory tract, in structures such as the external ear, and in the articulating surfaces of joints. It composes most of the skeleton of vertebrate embryos, being re