polygamize

From polygamy + -ize.

polygamize (third-person singular simple present polygamizes, present participle polygamizing, simple past and past participle polygamized)

1. (intransitive) To practice polygamy: to marry more than one wife or husband.
2. (rare, transitive) To marry (multiple spouses).

• “polygamize”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.