cushty vs excellent

cushty

adj
  • Excellent, very good. 

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. 

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