The story
- French · borrowed frombiandrie
- German · borrowed fromBiandrie
- English todaybiandry
Probably borrowed from German Biandrie or French biandrie. Equivalent to bi- + -andry.
First known use, by meaning
- from late 19th c. The state of having two male partners.
- from 20th c. Marriage with two men.
Etymology from Wiktionary, CC BY-SA 4.0.