marquess vs peacock

marquess

noun
  • A title of nobility for a man ranking beneath a duke and above an earl. 

peacock

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

  • 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. 

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

  • To strut about proudly. 

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