co-husband

noun

Etymology: From co- + husband.

1. In a polyandrous marriage, another husband of a man’s wife.

   “When younger brother calls [his elder brother's wife] his "co-wife" and reciprocally, when she calls him "co-husband," rights in sexuality are being satirized.”

   “The village chief Sambhu, upheld Mahesh’s claim to half of Damodar’s wealth since he was his co-husband”