Origin: Anc Greek
δέρμα/derma(=skin beneath the epidermis)
> δέρμα --> δεσμά/desma(=bonds) because skin keeps the body tight > δέρω/dero(=to peel, to flay)
literally meaning "dry skin”
Xeroderma is a medical condition which is defined as abnormal dry skin resulting from several reasons as vitamin A deficiency, systemic illness, overexposure to sunlight, or side effects of medicines.