bleck vs ych a fi

bleck

noun

  • Any black fluid substance, as in blacking for leather, or black grease. 

  • Coalfish (Pollachius virens). 

  • Soot, smut. 

ych a fi

intj

  • yuck 

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