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 "with, together" (see com-) + dominum "right of ownership, property, dominion," from dominus "lord, master, owner," from domus "house" (from PIE root *dem- "house, household"). 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.