adverb vs byword

adverb

noun
  • A word that modifies a verb, adjective, other adverbs, or various other types of words, phrases, or clauses. 

  • In the Raku programming language, a named parameter that modifies the behavior of a routine. 

  • A word that modifies a verb, adjective, other adverbs, or various other types of words, phrases, or clauses. (modifying a verb) 

verb
  • To make into or become an adverb. 

byword

noun
  • A proverb or proverbial expression, common saying; a frequently used word or phrase. 

  • A nickname or epithet. 

  • Someone or something that stands as an example (i.e. metonymically) for something else, by having some of that something's characteristic traits. 

  • A characteristic word or expression; a word or phrase associated with a person or group. 

  • An object of notoriety or contempt, scorn or derision. 

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