Moiety
Literally, moiety means half, or one of two equal parts. In Iroquois societies, clans stand in a moiety (opposite) relationship to other clans or groups of clans for purposes of councils, ceremonies, and games. For example, among the Kanienkehaka (Mohawk), who have three clans, the Turtle and Wolf clans sometimes group together as "brothers" for certain games and ceremonies, forming one moiety, and face the Bear clan as their "cousins" or opposite moiety.