Imum or Imaum: How To spell?

The word Imum is misspelled against Imaum, a noun meaning "A Mohammedan prince who, as a successor of Mohammed, unites in his person supreme spiritual and temporal power."

Word contains consecutive vowels 'AU' in between alphabets im & m is misspelled as 'U' as letter 'A' is phonetically ignored
Wrong Spelling: im-u-m
Correct Spelling: im-au-m
Check more misspelled words of Imaum to spell it correct.