co-mother

noun

The relationship of a godmother to the other god-parents, and the legal parents, of a child.

Meanings

nounco-mother (plural co-mothers)

plural co-mothers · alternative commother

  1. obsoleteThe relationship of a godmother to the other god-parents, and the legal parents, of a child.

    It is considered incestuous for a co-mother and co-father to have sex relations

    1967, Charles Wagley, Joao José Rescála, Amazon town, page 151

    Synonyms: cummer, gossip, commère

  2. In polygamy, a wife of one's father who is not one's mother; that is, co-wife of one's mother.

    the two of them went to their mother's forest hut and tried to find a way to avenge their mother's death and kill their co-mother.

    2001, Thomas Slone, One Thousand One Papua New Guinean Nights: Tales form 1972–1985, page 321

    Synonyms: sister-wife

  3. In polygamy, the relationship between one co-wife and another, in respect to their children.

    Notwithstanding the voluminous “co-wife” literature that Western anthropologists have used to define African marriage, “co-mother” is the preferred idiom in many African cultures for expressing the relationship amongst women married into the same family.

    2003, Oyèrónkẹ́ Oyěwùmi, African women and feminism: reflecting on the politics of sisterhood, page 13

    Synonyms: sister-wife

  4. In a lesbian couple, the nonbirth mother (partner of the birth mother) of a child, especially one who takes an equal role in mothering the child.

    The dilemmas engendered by the absence of a biological tie between a child and co-mother illuminate the centrality of familial rights and obligations in American kinship.

    2004, Robert Parkin, Linda Stone, Kinship and family: an anthropological reader, page 384

    Synonyms: stepmother

Synonyms & antonyms

nounThe relationship of a godmother to the other god-parents, and the legal parents, of a child.

Similar
cummergossipcommère

nounIn polygamy, a wife of one's father who is not one's mother; that is, co-wife of one's mother.

nounIn polygamy, the relationship between one co-wife and another, in respect to their children.

nounIn a lesbian couple, the nonbirth mother (partner of the birth mother) of a child, especially one who takes an equal role in mothering the child.

Similar

Origin

  1. Latincommater
  2. Englishco-mother

* com- + mother, as calque of Latin commater, French commère.

Full word history & related roots →
Cite this entry
APA

co-mother. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/co-mother

MLA

“co-mother.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/co-mother. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “co-mother,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/co-mother.

Source: co-mother on Wiktionary, CC BY-SA 4.0.