The compound adjective "whole-house" is a modern English formation built from two ancient Germanic roots. The first element, "whole," descends from the Old English hāl, which conveyed concepts of being uninjured, sound, and complete. The second element, "house," originates from the Old English hūs, referring broadly to a dwelling or shelter. The compound's logic is transparently literal, combining the sense of "entire" with "house" to create a term specifying something that applies to or is integrated throughout the complete structure. This formation follows a common English pattern for creating specific modifiers, particularly in contexts like design, technology, and systems (e.g., whole-house fan, whole-house water filter), to distinguish from partial or room-specific applications.

Structure: whole (entire) + house (dwelling) - whole: From Old English hāl (sound, healthy, entire), of Germanic origin. Functions as an adjective meaning "entire, complete". - house: From Old English hūs (dwelling, shelter, building), of Germanic origin. Functions as a noun meaning "a building for human habitation".