MOIETY Meaning of MOIETY in English n. (pl. -ies) Law or literary 1 a half. 2 each of the two parts into which a thing is divided. Etymology: ME f. OF moit{eacute}, moiti{eacute} f. L medietas -tatis middle f. medius (adj.) middle Oxford English vocab. Оксфордский английский словарь. 2012