frivol vs loiter

frivol

noun
  • An idle diversion or pastime; a frivolity. 

  • An unserious person; a shallow person. 

verb
  • To behave frivolously. 

  • To trifle. 

loiter

noun
  • A standing or strolling about without any aim or purpose. 

verb
  • To remain at a certain place instead of moving on. 

  • To stand about without any aim or purpose; to stand about idly. 

  • For an aircraft to remain in the air near a target. 

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