The compound 'welcome-home' is a relatively modern English formation that combines two ancient concepts. 'Welcome' originates from Old English wilcuma, a noun literally meaning "a desirable guest," itself from wil- (pleasure, desire) and cuma (guest, comer). 'Home' stems from the Old English hām, referring to one's dwelling or native place, a word with deep Proto-Germanic roots. The fusion of these terms creates a specific semantic unit that encapsulates the act of greeting someone's return to their place of belonging. The logic is direct: it is the 'welcome' (the expression of pleased reception) specifically occasioned by the arrival 'home.' This compound elegantly captures a universal social ritual, transforming the abstract notion of a greeting into one tied to the deeply personal concept of homecoming.

This is a compound noun/adjective formed from two independent English words: 'welcome' (from Old English wilcuma, meaning "a person whose coming is pleasing") and 'home' (from Old English hām, meaning "dwelling, house, estate"). In the compound, they function as a single lexical unit.