adverbial vs qualifier

adverbial

noun
  • An adverbial word or phrase. 

adj
  • Of or relating to an adverb. 

qualifier

noun
  • A word or phrase, such as an adjective or adverb, that describes or characterizes another word or phrase, such as a noun or verb; a modifier; that adds or subtracts attributes to another. 

  • A preliminary stage of a competition. 

  • One who qualifies for something, especially a contestant who qualifies for a stage in a competition. 

  • A marker that qualifies or modifies another code element. 

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