howitzer vs stiletto

howitzer

verb
  • To attack with a howitzer. 

noun
  • A cannon that combines certain characteristics of field guns and mortars, delivering projectiles with medium velocities, usually with relatively high trajectories; normally a cannon with a tube length of 20 to 30 calibers. 

  • A powerfully hit shot. 

stiletto

verb
  • To attack or kill with a stiletto (dagger). 

noun
  • An awl. 

  • A small, slender knife or dagger-like weapon intended for stabbing. 

  • A rapier. 

  • A woman's shoe with a tall, slender heel (called a stiletto heel). 

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