lancer vs swaddy

lancer

noun
  • A cavalry soldier armed with a lance weapon. 

  • Any of various Asian hesperiid butterflies of the genus Plastingia. 

  • One who lances something. 

swaddy

noun
  • A soldier, especially a militiaman. 

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