From Proto-Indo-Iranian *sapátniH (“co-wife, concubine”), from Proto-Indo-European *sm̥-pót-nih₂, from *sm̥- (“together, co-”) + *pótnih₂. Cognate with Sanskrit सपत्नी (sápatnī).
𐬵𐬀𐬞𐬀𐬚𐬥𐬍 • (hapaθnī) f[1]