chaff vs mimic

chaff

verb
  • To make fun of; to turn into ridicule by addressing in ironical or bantering language; to quiz. 

  • To use light, idle language by way of fun or ridicule; to banter. 

  • To cut up (straw or hay) for use as cattle feed. 

noun
  • Light jesting talk; banter; raillery. 

  • Any excess or unwanted material, resource, or person; anything worthless. 

  • Loose material, e.g. small strips of aluminum foil dropped from aircraft, intended to interfere with radar detection. 

  • Straw or hay cut up fine for the food of cattle. 

  • The inedible parts of a grain-producing plant. 

mimic

verb
  • To imitate, especially in order to ridicule. 

  • To take on the appearance of another, for protection or camouflage. 

noun
  • An imitation. 

  • A comic who does impressions. 

  • An entity that mimics another entity, such as a disease that resembles another disease in its signs and symptoms; see the great imitator. 

  • A mime. 

adj
  • Imitative; characterized by resemblance to other forms; applied to crystals which by twinning resemble simple forms of a higher grade of symmetry. 

  • Pertaining to mimicry; imitative. 

  • Mock, pretended. 

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