Synoecism

Synoecism or synecism (/sᵻˈniːsɪzəm/ si-NEE-siz-əm; Ancient Greek: συνοικισμóς, sunoikismos, Ancient Greek: [syːnɔi̯kismós]), also spelled synoikism (/sᵻˈnɔɪkɪzəm/ si-NOY-kiz-əm), was originally the amalgamation of villages in Ancient Greece into poleis, or city-states. Etymologically the word means "dwelling together (syn) in the same house (oikos)." Subsequently any act of civic union between polities of any size was described by the word synoikismos. The closest analogy today is the incorporation of a city; in fact, "incorporation" is often used to translate synoikismos, in addition to the Latinized synoecism. Synoecism is opposed to Greek dioecism (διοικισμóς, dioikismos), the creation of independent communities within the territory of a polis.