bar sinister vs bend sinister

bar sinister

noun
  • A bend sinister or baton sinister in a coat of arms. 

  • A state or characteristic which is dishonorable or shameful; a stigma. 

  • The state or characteristic of having been born out of wedlock; illegitimacy; bastardy. 

bend sinister

noun
  • A diagonal band on a coat of arms going from top right to bottom left (as you look at it), held to indicate bastardy. 

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