Opertanoeus or Opertaneous: How To spell?

The word Opertanoeus is misspelled against Opertaneous, an adjective meaning "Concealed; private."

Word contains consecutive vowels 'EO' in between alphabets opertan & us is misspelled as 'OE'
Wrong Spelling:  opertan-oe-us 
Correct Spelling:  opertan-eo-us 
Check more misspelled words of Opertaneous to spell it correct.