blemish vs defect

blemish

noun
  • A moral defect; a character flaw. 

  • A small flaw which spoils the appearance of something, a stain, a spot. 

verb
  • To tarnish (reputation, character, etc.); to defame. 

  • To spoil the appearance of. 

defect

noun
  • A fault or malfunction. 

  • A part by which a figure or quantity is wanting or deficient. 

  • The quantity or amount by which anything falls short. 

verb
  • To desert one's army, to flee from combat. 

  • To abandon or turn against; to cease or change one's loyalty, especially from a military organisation or political party. 

  • To flee one's country and seek asylum. 

  • To join the enemy army. 

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