co-husband

co- +‎ husband.

co-husband (plural co-husbands)

1. In a polyandrous marriage, another husband of a man's wife.
   • 1997, David Lipset, Mangrove man: dialogics of culture in the Sepik estuary, page 72:

     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.

   • 2004, Govindraraj Sulekha, The Co-husband:

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

• husband-in-law

• co-wife

• co-in-law
• co-father