mega vs quite good

mega

adj

  • Great; excellent. 

  • Very large. 

adv

  • extremely 

noun

  • The Steinhaus-Moser number ② 

quite good

adj

  • Excellent. 

  • Used other than figuratively or idiomatically: see quite, good. 

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