Interriegn or Interreign: How To spell?

The word Interriegn is misspelled against Interreign, a noun meaning "An interregnum."

Word contains consecutive vowels 'EI' in between alphabets interr & gn is misspelled as 'IE'
Wrong Spelling:  interr-ie-gn 
Correct Spelling:  interr-ei-gn 
Find more wrongly spelled words of Interreign to spell it well.