Interreugn or Interreign: How To spell?

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

Word contains consecutive vowels 'EI' in between alphabets interr & gn is misspelled as 'EU'
Wrong Spelling:  interr-eu-gn 
Correct Spelling:  interr-ei-gn 
Check more misspelled words of Interreign to spell it correct.