climb vs keel over

climb

verb
  • To scale; to get to the top of something. 

  • To mount; to move upwards on. 

  • To move to a higher position on the social ladder. 

  • to jump high 

  • Of plants, to grow upwards by clinging to something. 

  • To move (especially up and down something) by gripping with the hands and using the feet. 

  • to practise the sport of climbing 

  • To ascend; rise; to go up. 

noun
  • The act of getting to somewhere more elevated. 

  • An upwards struggle 

  • An act of climbing. 

keel over

verb
  • Of a vessel: to roll so far on its side that it cannot recover; to capsize or turn turtle. 

  • To collapse in a faint; to black out, to swoon. 

  • To die. 

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