above-board vs gradely

above-board

adv
  • Honestly; openly. 

adj
  • In open sight; without trick, concealment, or deception. 

gradely

adv
  • properly, really 

adj
  • excellent 

  • of a person; decent, well-meaning, respectable 

  • handsome, fair 

  • real, proper 

How often have the words above-board and gradely occurred in a corpus of books? (source: Google Ngram Viewer )