canker vs dilute

canker

verb
  • To affect as a canker; to eat away; to corrode; to consume. 

  • To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous. 

  • To infect or pollute; to corrupt. 

  • To waste away, grow rusty, or be oxidized, as a mineral. 

noun
  • An avian disease affecting doves, poultry, parrots and birds of prey, caused by Trichomonas gallinae. 

  • A region of dead plant tissue caused by such a disease. 

  • Anything which corrodes, corrupts, or destroys. 

  • A kind of wild rose; the dog rose. 

  • An obstinate and often incurable disease of a horse's foot, characterized by separation of the horny portion and the development of fungoid growths. Usually resulting from neglected thrush. 

  • A plant disease marked by gradual decay. 

  • A corroding or sloughing ulcer; especially a spreading gangrenous ulcer or collection of ulcers in or about the mouth. 

  • A worm or grub that destroys plant buds or leaves; cankerworm. 

dilute

verb
  • To weaken, especially by adding a foreign substance. 

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

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

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

  • Having a low concentration. 

  • Weak; reduced in strength by dilution; diluted. 

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