crabby vs snippish

crabby

adj
  • Visibly irritated or annoyed; grouchy, irritable, in a foul mood; given to complaining or finding fault in an annoyed way. 

  • crabbed; difficult, or perplexing. 

snippish

adj
  • snippy; irritable; short-tempered. 

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