adverb vs locution

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. 

locution

noun
  • The use of a word or phrase in an unusual or specialized way. 

  • A phrase or expression connected to an individual or a group of individuals through repeated usage. 

  • A supernatural revelation where a religious figure, statue or icon speaks, usually to a saint. 

  • Style of discourse or usage, or any particular utterance in such style. 

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