pug vs quail

pug

noun
  • Any geometrid moth of the genus Eupithecia. 

  • The pawprint or footprint of an animal. 

  • A harlot; a prostitute. 

  • A pug mill. 

  • A small dog of an ancient breed originating in China, having a snub nose, wrinkled face, squarish body, short smooth hair, and curled tail. 

  • One who fights with fists; a boxer. 

  • Any compressed clay-like material mixed and worked into a soft, plastic condition for making bricks, pottery or for paving. (Also pug soil) 

  • An upper servant in a great house. 

  • A bargeman. 

verb
  • To mix and stir when wet. 

  • To fill or stop with clay by tamping; to fill in or spread with mortar, as a floor or partition, for the purpose of deadening sound. 

quail

noun
  • Any of various small game birds of the genera Coturnix, Anurophasis or Perdicula in the Old World family Phasianidae or of the New World family Odontophoridae. 

  • The meat from this bird eaten as food. 

verb
  • Of courage, faith, etc.: to slacken, to give way. 

  • To waste away; to fade, to wither. 

  • To lose heart or courage; to be daunted or fearful. 

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