sə̇ˈnēˌsizəm noun
also syn·oi·cism -nȯiˌkizəm, -nȯiˌsi-
( -s )
Etymology: Greek synoikismos wedlock, act of combining into one city-state, from synoikizein
1. : a joining together : union ; specifically : a uniting of several towns or villages into one community (as in ancient Greece)
2. : the condition of being synoecious