Moiety (noun)
moi·e·ty [moi-i-tee]

noun, plural moi·e·ties.
1. a half.
2. an indefinite portion, part, or share.
3. Anthropology. one of two units into which a tribe or community is divided on the basis of unilineal descent.

Origin: 1400–50; late Middle English moite < Middle French < Latin medietāt- (stem of medietās ) the middle, equivalent to medi ( us ) mid + -etāt-, variant, after vowels, of -itāt- -ity

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