Coryphe or Coryphei: How To spell?

The word Coryphe is misspelled against Coryphei, which is plural of "Corypheus"

Word end with consecutive vowels 'EI' preceded by alphabets 'coryph' is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  coryph-e 
Correct Spelling:  coryph-ei 
Find more incorrect spellings of Coryphei to spell right way.