condominium (n.) Look up condominium at Dictionary.com
c.1714, "joint rule or sovereignty," from Modern Latin condominium "joint sovereignty," apparently coined in German c.1700 from Latin com- "together" (see com-) + dominum "right of ownership" (see domain). A word in politics and international law until sense of "privately owned apartment" arose in American English 1962 as a special use of the legal term.