The term 'top-drawer' originated in the early 20th century from the literal arrangement of furniture, specifically a chest of drawers. The top drawer was traditionally the place where one would store the most valuable or important items, such as jewelry and fine linens. This physical association with prestige and high value was abstracted into a metaphorical adjective. Consequently, 'top-drawer' evolved to describe anything or anyone considered to be of the finest quality or highest social standing, perfectly encapsulating the logic of placing the best in the most prominent and accessible location.

Structure: top (highest) + drawer (compartment) - top: From Old English 'topp', meaning summit or highest part. In this compound, it functions as an intensifier denoting the highest rank or quality. - drawer: From the verb 'draw', meaning to pull, with the agent suffix '-er'. It refers to a box-like compartment that can be pulled out. In this compound, it metaphorically represents a category or level of storage.