excellent vs hellagood

excellent

adj
  • Exceptionally good of its kind. 

  • Having excelled, having surpassed. 

  • Superior in kind or degree, irrespective of moral quality. 

  • Of higher or the highest quality; splendid. 

hellagood

adj
  • Very good. 

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