superlative vs usual

superlative

noun
  • An adjective used to praise something exceptional. 

  • The extreme (e.g. highest, lowest, deepest, farthest, etc) extent or degree of something. 

  • The form of an adjective that expresses which of several items has the highest degree of the quality expressed by the adjective; in English, formed by appending "-est" to the end of the adjective (for some short adjectives only) or putting "most" before it. 

adj
  • Exceptionally good; of the highest quality; superb. 

  • Of or relating to a superlative. 

usual

noun
  • A specific good or service (e.g. a drink) that someone typically orders. 

  • The typical state of something, or something that is typical. 

adj
  • Most commonly occurring; typical. 

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