beep vs purl

beep

noun
  • The sound produced by the horn of a car, or any similar sound. 

  • A message sent to a pager device. 

  • A short, electronically produced tone. 

verb
  • To sound (something that makes a beep). 

  • To contact (someone via) a pager device. 

  • To telephone a person, only allowing the phone to ring once, in order to request a call back. 

  • To produce a beep. 

  • To have sexual intercourse with - referring to the bleep tone used to censor obscene words in broadcasts 

purl

noun
  • A gentle murmuring sound, such as that produced by the running of a liquid among obstructions. 

  • A tern. 

  • a heavy or headlong fall; an upset. 

  • A circle made by the motion of a fluid; an eddy; a ripple. 

  • A particular stitch in knitting; an inversion of stitches giving the work a ribbed or waved appearance. 

  • The edge of lace trimmed with loops. 

  • An embroidered and puckered border; a hem or fringe, often of gold or silver twist; also, a pleat or fold, as of a band. 

verb
  • To rise in circles, ripples, or undulations; to curl; to mantle. 

  • To use an inverted stitch producing ribbing etc. 

  • To flow with a murmuring sound in swirls and eddies. 

  • To decorate with fringe or embroidered edge 

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