double-hung

The term 'double-hung' is a descriptive compound adjective formed within Modern English. The first element, 'double,' traces back through Old French to Latin duplus, meaning "twofold," and ultimately to the Proto-Indo-European root dwo-, meaning "two." The second element, 'hung,' derives from the Old English verb hōn, "to suspend," from Proto-Germanic hanhaną. The compound logically describes a specific architectural feature: a window with two sashes (the 'double' part) that are both suspended by cords and weights (the 'hung' part), allowing each to slide vertically. This literal construction efficiently names the object by its defining mechanical characteristic.

Structure: double (twofold) + hung (suspended) - double: From Latin duplus (twofold, double). In this compound, it functions as a modifier meaning "having two" or "twofold." - hung: Past participle of the verb hang, from Old English hōn. In this compound, it functions as an adjective meaning "suspended" or "attached so as to allow movement."