dilute vs dun

dilute

adj
  • Of an animal: having a lighter-coloured coat than is usual. 

  • Having a low concentration. 

  • Weak; reduced in strength by dilution; diluted. 

verb
  • To cause the value of individual shares or the stake of a shareholder to decrease by increasing the total number of shares. 

  • To become attenuated, thin, or weak. 

  • To weaken, especially by adding a foreign substance. 

  • To make thinner by adding solvent to a solution, especially by adding water. 

noun
  • An animal having a lighter-coloured coat than is usual. 

dun

adj
  • Of a brownish grey colour. 

noun
  • A collector of debts, especially one who is insistent and demanding. 

  • A fly made to resemble the mayfly subimago. 

  • A newly hatched, immature mayfly; a mayfly subimago. 

  • An ancient or medieval fortification; especially a hill-fort in Scotland or Ireland. 

  • A mound or small hill. 

  • A brownish grey colour. 

  • An urgent request or demand of payment. 

  • A structure in the Orkney or Shetland islands or in Scotland consisting of a roundhouse surrounded by a circular wall; a broch. 

intj
  • Imitating a deep bass note, such as that found in suspenseful music. 

verb
  • To harass by continually repeating e.g. a request. 

  • To ask or beset a debtor for payment. 

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