Moiety \Moi"e*ty\ (moi"[-e]*t[y^]), n.; pl. Moieties
(moi"[-e]*t[i^]z). [F. moiti['e], L. medietas, fr. medius
middle, half. See Mid, a., and cf. Mediate, Mediety.]
1. One of two equal parts; a half; as, a moiety of an estate,
of goods, or of profits; the moiety of a jury, or of a
The more beautiful moiety of his majesty's subject.
2. An indefinite part; a small part. --Shak.
It's funny though, the two contrasting definitions make the word a little useless. A half and an indefinitely small part are two very different things. Half is large, equal, definite. Indefinite smacks of atomic or ripped off.