crochet vs megrim

crochet

noun
  • A certain crest of enamel on the molar teeth of some rhinoceroses. 

  • Needlework made by looping thread with a hooked needle. 

verb
  • To make (a piece of) needlework using a hooked needle; to make interlocking loops of thread. 

megrim

noun
  • See megrims (“depression; any of various diseases of animals”). 

  • A type of flatfish of the genus Lepidorhombus native to the northeastern Atlantic Ocean; specifically, the Cornish sole, sail-fluke, or whiff (Lepidorhombus whiffiagonis). 

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