bayonet vs field gun

bayonet

noun
  • A pointed instrument of the dagger kind fitted on the muzzle of a musket or rifle, so as to give the soldier increased means of offence and defence. Originally, the bayonet was made with a handle, which needed to be fitted into the bore of the musket after the soldier had fired. 

  • A pin which plays in and out of holes made to receive it, and which thus serves to engage or disengage parts of the machinery. 

verb
  • To compel or drive by the bayonet. 

  • To stab with a bayonet. 

field gun

noun
  • An artillery piece, originally a smaller gun that could accompany a field army on the march and when in combat could be moved about the battlefield in response to changing circumstances. 

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