Marsellaise or Marseillaise: How To spell?

The word Marsellaise is misspelled against Marseillaise, a noun meaning "A native or inhabitant of Marseilles."

Word contains consecutive vowels 'EI' in between alphabets mars & llaise is misspelled as 'E' as letter 'I' is phonetically ign
Wrong Spelling:  mars-e-llaise 
Correct Spelling:  mars-ei-llaise 
Find more wrongly spelled words of Marseillaise to spell it well.