crewel vs embroidering

crewel

noun

  • Worsted yarn, slackly twisted, used for embroidery. 

verb

  • To make (embroidery) using the crewel method. 

embroidering

noun

  • An embroidered decoration. 

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