Crisal or Crissal: How To spell?
The word Crisal is misspelled against Crissal, an adjective meaning "Having highly colored under tail coverts; as, the crissal thrasher."
Crissal has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings cri & al which should not be misspelled with single 'S'
Wrong Spelling:  cri-s-al  Correct Spelling:  cri-ss-al 
Find more wrongly spelled words of Crissal to spell it well.