sibilant vs snappish

sibilant

adj
  • Characterized by a hissing or hushing sound such as the s or sh in sack or shack. 

noun
  • A consonant having a hissing or hushing sound such as the s or sh in sack or shack. 

snappish

adj
  • Exhibiting irritation or impatience; curt; irascible. 

  • Likely to snap or bite. 

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