encourage vs slay

encourage

verb
  • To mentally support; to motivate, give courage, hope or spirit. 

  • To spur on, strongly recommend. 

  • To foster, give help or patronage 

slay

verb
  • To amaze, stun, or otherwise incapacitate by excellence; to excel at something. 

  • To defeat; to overcome (in a competition or contest). 

  • To kill; to murder. 

  • To have sex with. 

  • To delight or overwhelm, especially with laughter. 

  • To eradicate or stamp out. 

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