Terms for the various parts of the body are known to be a crosslinguistically stable unit of the lexicon; a quarter of the Swadesh 100-word list (comprising words that are typically not susceptible to changes such as borrowing or replacement) is allocated to the most important features of external, facial, and internal anatomy (such as skin, flesh, blood, bone, horn, egg, tail, feather, hair, head, ear, eye, nose, mouth, tooth, tongue, claw, foot, knee, hand, belly, neck, breasts, heart, and liv…