epithet vs screen name

epithet

noun
  • A term used as a descriptive substitute for the name or title of a person. 

  • A word in the scientific name of a taxon following the name of the genus or species. This applies only to formal names of plants, fungi and bacteria. In formal names of animals the corresponding term is the specific name. 

  • A term used as a qualifier of the name of a deity in order to designate said deity in a particular aspect or role. 

  • One of many formulaic words or phrases used in the Iliad and Odyssey to characterize a person, a group of people, or a thing. 

  • A term used to characterize a person or thing. 

  • An abusive or contemptuous word or phrase. 

verb
  • To term; to refer to as. 

screen name

noun
  • Synonym of stage name 

  • a pseudonym used for Internet communications 

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