jigsaw vs masker

jigsaw

verb
  • To cut something using a jigsaw. 

noun
  • Something that can be compared to a jigsaw puzzle. 

  • A power saw with fine teeth and a narrow blade which can cut curves in wood or metal. 

  • A jigsaw puzzle. 

masker

verb
  • To choke; stifle. 

  • To render giddy or senseless 

  • To be bewildered. 

  • To decay; rust. 

noun
  • One who wears a mask; one who appears in disguise at a masquerade or wears a mask in a ritual. 

  • That which masks (noise in a signal, etc.). 

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