noun Date: circa 1591 marriage in which a spouse of either sex may have more than one mate at the same time, the state of being polygamous, polygamist noun polygamize intransitive verb
POLYGAMY
Meaning of POLYGAMY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012