peacock vs yarrow

peacock

noun
  • A male peafowl, especially Pavo cristatus, notable for its brilliant iridescently ocellated tail. 

  • A peafowl (of the genus Pavo or Afropavo), either male or female. 

  • Any of various Asian species of papilionid butterflies of the genus Papilio. 

  • A vainglorious person [from the 14th c.]. 

verb
  • To engage in peacocking, ostentatious dress or behaviour to impress women. 

  • To strut about proudly. 

yarrow

noun
  • The green woodpecker, Picus viridis. 

  • Common yarrow, Achillea millefolium, the type species of the genus. 

  • Any of several pungent Eurasian and North American herbs, of the genus Achillea, used in traditional herbal medicine. 

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