Coriaceous comes from the Late Latin word coriāceus, which means “leathern.”
The related word corium, used in the fields of anatomy and zoology, means “skin.”
The –aceous suffix means “resembling, having the nature of” or “made of,” and it occurs in loanwords from Latin such as cretaceous, “resembling or containing chalk,” and herbaceous, “herblike.”
EXAMPLES OF CORIACEOUS
The book’s binding was made with a coriaceous material, giving it a luxurious leather-like appearance.
The ancient warriors’ armor was coriaceous, providing them with both protection and the durability of leather.