segregate vs sieve

segregate

verb
  • To separate, especially by social policies that directly or indirectly keep races or ethnic groups apart. 

adj
  • Separated from others of the same kind. 

  • Separate from a mass and collected together along lines of fraction. 

  • Separate; select. 

sieve

verb
  • To concede; let in 

  • To strain, sift or sort using a sieve. 

noun
  • A device with a mesh bottom to separate, in a granular material, larger particles from smaller ones, or to separate solid objects from a liquid. 

  • A process, physical or abstract, that arrives at a final result by filtering out unwanted pieces of input from a larger starting set of input. 

  • An intern who lets too many non-serious cases into the emergency room. 

  • A person, or their mind, that cannot remember things or is unable to keep secrets. 

  • A collection of morphisms in a category whose codomain is a certain fixed object of that category, which collection is closed under precomposition by any morphism in the category. 

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