crape vs protuberance

crape

noun
  • Mourning garments, especially an armband or hatband. 

verb
  • To form into ringlets; to curl or crimp. 

  • To clothe in crape. 

protuberance

noun
  • A bulge, knob, swelling, spine or anything that protrudes. 

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