peer vs viscount

peer

noun
  • A noble with a title, i.e., a peerage, and in times past, with certain rights and privileges not enjoyed by commoners. 

  • Someone who pees, someone who urinates. 

  • Somebody who is, or something that is, at a level or of a value equal (to that of something else). 

  • A look; a glance. 

  • Someone who is approximately the same age (as someone else). 

  • A comrade; a companion; an associate. 

verb
  • To make equal in rank. 

  • To carry communications traffic terminating on one's own network on an equivalency basis to and from another network, usually without charge or payment. Contrast with transit where one pays another network provider to carry one's traffic. 

  • To look with difficulty, or as if searching for something. 

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 peer and viscount occurred in a corpus of books? (source: Google Ngram Viewer )