aigrette vs calamus

aigrette

noun
  • A feather or plume, or feather-shaped item, used as an adornment or ornament. 

  • The lesser white heron. 

  • The feathery crown of some seeds (such as the dandelion). 

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. 

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