polygar
/ˈpɒlɪɡəmɪst/; /ˌpɒlɪˈɡæmɪst/Definitions
1. noun
A person who practices or advocates polygamy, especially the practice of marrying more than one spouse during one’s lifetime.
“The polygamist community in Utah has been the subject of much controversy and debate.”
2. adjective
Pertaining to or characterized by polygamy.
“Polygamous marriages are often viewed as taboo in Western societies.”