to form or organize into a single body or corporation together with others.
From Latin co- (together) + incorporate (to form into a body). Incorporate comes from in- (into) + corpus (body), so coincorporate means to put multiple entities into one shared body.
This is exactly what happened when independent shops merged into chains or when villages incorporated into cities—separate entities becoming one legal body with shared rules and ownership.
Complete word intelligence in one call. Free tier — 50 lookups/day.