barely vs not yet

barely

adv
  • Almost not at all. 

  • By a small margin. 

not yet

adv
  • Not quite; not exactly. 

  • Not for the moment, though expected later. 

noun
  • A skill that one is learning but has not yet acquired. 

How often have the words barely and not yet occurred in a corpus of books? (source: Google Ngram Viewer )