all-union

The compound "all-union" is a modern political construct, originating in the early 20th century to describe institutions or events spanning the entire Union of Soviet Socialist Republics (USSR). The first element, "all", is a native English word of Germanic origin, ultimately from Proto-Indo-European h₂el- ("beyond, other"), which evolved to signify completeness. The second element, "union", entered English via Old French from Latin unio, a derivative of unus ("one"), tracing back to the Proto-Indo-European root óynos. The compound's logic is transparently literal, combining "entire" with "union" to create an adjective meaning "pertaining to the whole of the (Soviet) Union," reflecting the centralized, pan-national character of Soviet governance and its affiliated bodies.

Structure: all (entire) + union (political entity) - all: From Old English eall, meaning "entire, whole, every". It functions as an intensifying prefix indicating totality. - union: From Latin unio (stem union-), meaning "oneness, unity", derived from unus ("one"). It functions as the nominal root specifying the entity.