Doentological or Deontological: How To spell?

The word Doentological is misspelled against Deontological, an adjective meaning "Pertaining to deontology."

Word contains consecutive vowels 'EO' in between alphabets d & ntological is misspelled as 'OE'
Wrong Spelling:  d-oe-ntological 
Correct Spelling:  d-eo-ntological 
Find more incorrect spellings of Deontological to spell right way.