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moiety (MOI uh tee)
1. Either of two parts, not necessarily equal, into which something is or can be divided.
2. Either of two halves into which some Native South American and Aboriginal Australian societies are divided for ritual and marriage purposes.

Marriages are forbidden within the same moiety.

3. Etymology: from Old French meitiet, from Latin medietas "half", from medius, "middle".
This entry is located in the following unit: medio-, medi- (page 5)