Adelphogamy is a polygamous relationship in which brothers share a common wife or wives. The word – first used in 1888, according to the Merriam-Webster Dictionary – also applies to marriages between brothers and sisters. There’s also a zoological concept of adelphogamy referring to mating between sibling ants. It can refer to the union of mother and daughter cells in yeast. The word is derived from the Greek “adelphos” (brother) and “gamos” (marriage).
October 27, 2020