From poly- + amor + -y.

• (RP) IPA: [ˌpɒlɪˈæməɹi]
• (Standard Southern British) IPA: [ˌpɔlijˈæm(ə)ɹi]
• (America) IPA: [ˌpɑlijˈæm(ə)ɹi]

polyamory (uncountable)

1. Any of various practices involving romantic or sexual relationships with multiple partners with the knowledge and consent of all involved.
   • 1992, Deborah M. Anapol, Love without limits, page 4:

     Some of these are poly intimacy, polyamory, polygamy, omnigamy, multimate, multiple adult relationship, combo, cellular family, expanded family, nonexclusive relationship, intimate friendship and inclusive relationship.

• polyamorous
• polycule
• polyfidelity

• French: polyamour
• German: Polyamorie
• Italian: poliamore
• Portuguese: poliamor
• Russian: полиамо́рия
• Spanish: poliamor