calamus vs pompon

calamus

noun
  • A quill; the hard, horny, hollow, and more or less transparent part of the stem or scape of a feather. 

  • Synonym of fistula (“tube for sucking Eucharist wine”) 

  • A palm in genus Calamus, of rattan palms. 

  • The sweet flag, Acorus calamus. 

  • A fish of genus Calamus in family Sparidae; certain porgies. 

pompon

noun
  • A bundle of yarn, string, ribbon, etc. tied in the middle and left loose at the ends, so as to form a puff or ball, as for decoration or a showy prop for cheerleading. 

  • A hardy garden chrysanthemum with button-like flower heads. 

  • Any of several dwarf varieties of the Provence rose. 

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