Cohiress or Coheiress: How To spell?

The word Cohiress is misspelled against Coheiress, a noun meaning "A female heir who inherits with other heiresses; a joint heiress."

Word contains consecutive vowels 'EI' in between alphabets coh & ress is misspelled as 'I' as letter 'E' is phonetically ignore
Wrong Spelling:  coh-i-ress 
Correct Spelling:  coh-ei-ress 
Find more incorrect spellings of Coheiress to spell right way.