Blises or Blisses: How To spell?
The word Blises is misspelled against Blisses, which is plural of "Bliss"
Blisses has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings bli & es which should not be misspelled with single 'S'
Wrong Spelling:  bli-s-es  Correct Spelling:  bli-ss-es 
Find more wrongly spelled words of Blisses to spell it well.