analogy vs kinship

analogy

noun
  • A relationship of resemblance or equivalence between two situations, people, or objects, especially when used as a basis for explanation or extrapolation. 

  • The proportion or the equality of ratios. 

  • The correspondence of a word or phrase with the genius of a language, as learned from the manner in which its words and phrases are ordinarily formed; similarity of derivative or inflectional processes. 

kinship

noun
  • relation or connection by nature or character 

  • relation or connection by blood, marriage or adoption 

How often have the words analogy and kinship occurred in a corpus of books? (source: Google Ngram Viewer )