Interrign or Interreign: How To spell?

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

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