squire vs viscount

squire

noun
  • A title of dignity next in degree below knight, and above gentleman. See esquire. 

  • A male attendant on a great personage. 

  • A landowner from the English gentry during the early modern period. 

  • A devoted attendant or follower of a lady; a beau. 

  • A shield-bearer or armor-bearer who attended a knight. 

  • Term of address to a male equal. 

  • A title of office and courtesy. See under esquire. 

verb
  • To attend as a beau, or gallant, for aid and protection. 

  • To attend as a squire. 

viscount

noun
  • A member of the peerage, above a baron but below a count or earl. 

  • Any of various nymphalid butterflies of the genus Tanaecia. Other butterflies in this genus are called earls and counts. 

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