Misa or Missa: How To spell?
The word Misa is misspelled against Missa, a noun meaning "The service or sacrifice of the Mass."
Missa has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings mi & a which should not be misspelled with single 'S'
Wrong Spelling:  mi-s-a  Correct Spelling:  mi-ss-a 
Find more wrongly spelled words of Missa to spell it well.