scaly

The word 'scaly' is built upon the noun 'scale', which entered Middle English with the sense of a shell or husk, derived from the Old Norse word for a drinking bowl. This connection highlights how ancient terms for containers or coverings evolved to describe the thin, overlapping plates on fish and reptiles. The adjectival suffix '-y', of Germanic origin, is then appended to indicate the possession of this quality. Thus, the literal construction "full of scales" logically extends to describe anything covered in scale-like plates or, metaphorically, skin that is dry and flaking like peeling scales.

Structure: scale (covering plate) + y (adjective-forming suffix) 'scale' originates from Old Norse 'skál' (bowl, shell) via Old French 'escale' (husk, shell). 'y' is a native English suffix from Old English '-ig', used to form adjectives meaning "characterized by or full of."