octogamy means the state of having eight spouses simultaneously. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
noun
- The state of having eight spouses simultaneously.“I regret to say John has never had that pleasure yet; but if the "Honourable" Herbert D'Aulnoy should darken my doors again, I should feel it my duty to communicate certain facts about him to Sir Richard Mayne and Mr. Pollaky, and to ensure his conviction for bigamy, trigamy, quadrigamy, or perhaps octogamy, at the Old Bailey.”