crape vs ruckle

crape

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

  • To clothe in crape. 

noun
  • Mourning garments, especially an armband or hatband. 

ruckle

verb
  • To crease or wrinkle. 

  • To make a rattling noise in the throat. 

noun
  • A wrinkle. 

  • A rattling noise in the throat, as from suffocation. 

  • A disordered collection. 

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