escutcheon vs washboard

escutcheon

noun
  • The part of a ship's stern where its name is displayed. 

  • A small shield used to charge a larger one. 

  • The insignia around a doorknob's exterior hardware or a door lock's cosmetic plate. 

  • A marking upon the back of a cow's udder and the space above it (the perineum), formed by the hair growing upward or outward instead of downward. It was once taken as an index of milking qualities. 

  • A decorative and/or protective plate or bezel to fill the gap between a switch, pipe, valve, control knob, etc., and the surface from which it protrudes. 

  • An individual or corporate coat of arms. 

  • The pattern of distribution of hair upon the pubic mound. 

  • The depression behind the beak of certain bivalves; the ligamental area. 

washboard

noun
  • A board fastened along a ship's gunwale to prevent splashing; a splashboard. 

  • A stretch of ripples or bumps on a dirt or gravel road caused by interaction between traffic and road surface. 

  • Such a board used as a simple percussion instrument. 

  • A board with a corrugated surface against which laundry may be rubbed. 

verb
  • To play a washboard. 

  • To move up and down or back and forth across the surface of a hive, possibly to lay down a layer of propolis and wax. 

  • To produce a rippled texture on a surface. 

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