co-mother vs gossip

co-mother

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

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

  • 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. 

gossip

noun
  • A sponsor; a godfather or godmother; the godparent of a child. 

  • Someone who likes to talk about other people's private or personal business. 

  • Idle talk about someone’s private or personal matters, especially someone not present. 

  • A genre in contemporary media, usually focused on the personal affairs of celebrities. 

  • Idle conversation in general. 

verb
  • To talk idly. 

  • To talk about someone else's private or personal business, especially in a manner that spreads the information. 

How often have the words co-mother and gossip occurred in a corpus of books? (source: Google Ngram Viewer )