above-board vs simply

above-board

adv
  • Honestly; openly. 

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

simply

adv
  • Frankly. 

  • In a simple way or state; considered in or by itself; without addition; alone. 

  • Plainly; without art or subtlety 

  • Merely; solely. 

  • absolutely, positively. 

  • Foolishly; stupidly. 

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