above-board vs deadly

above-board

adv
  • Honestly; openly. 

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

deadly

adv
  • Extremely, incredibly. 

  • In a way which suggests death. 

adj
  • Very boring. 

  • Aiming or willing to destroy; implacable; desperately hostile. 

  • Very accurate (of aiming with a bow, firearm, etc.). 

  • Excellent, awesome, cool. 

  • Causing death; lethal. 

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