SWAT vs mace

SWAT

noun
  • A SWAT team 

mace

noun
  • A heavy fighting club. 

  • A long baton used by some drum majors to keep time and lead a marching band. If this baton is referred to as a mace, by convention it has a ceremonial often decorative head, which, if of metal, usually is hollow and sometimes intricately worked. 

  • A ceremonial form of this weapon. 

  • An officer who carries a mace as a token of authority. 

  • An old money of account in China equal to one tenth of a tael. 

  • An old weight of 57.98 grains. 

  • A spice obtained from the outer layer of the kernel of the fruit of the nutmeg. 

  • A knobbed mallet used by curriers make leather supple when dressing it. 

  • Tear gas or pepper spray, especially for personal use. 

verb
  • To spray in defense or attack with mace (pepper spray or tear gas) using a hand-held device. 

  • To spray a similar noxious chemical in defense or attack using an available hand-held device such as an aerosol spray can. 

  • To hit someone or something with a mace. 

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