good-size

The compound adjective "good-size" is a straightforward combination of the Germanic adjective "good" and the Latinate noun "size." The logic is transparent, with "good" acting as a modifier to indicate a degree of satisfaction or adequacy, rather than moral quality, attached to the concept of physical dimensions. This pattern of using "good" as an intensifier in compounds (e.g., good-looking, good-natured) is a productive feature of English. The term emerged naturally in the language to describe something that is not merely of average size, but of a notably ample, substantial, or satisfactory magnitude.

Structure: good (satisfactory) + size (dimensions) - good: From Old English gōd, of Germanic origin. In this compound, it functions as an intensifier meaning "satisfactory," "considerable," or "full." - size: From Old French sise, a shortening of assise ("assize," a statute fixing a standard), ultimately from Latin assidēre ("to sit beside"). It functions as the nominal root meaning "dimensions" or "magnitude."