Dyipnosophist or Deipnosophist: How To spell?

The word Dyipnosophist is misspelled against Deipnosophist, a noun meaning "One of an ancient sect of philosophers, who cultivated learned conversation at meals."

Word contains consecutive vowels 'EI' in between alphabets d & pnosophist is misspelled as 'YI'
Wrong Spelling:  d-yi-pnosophist 
Correct Spelling:  d-ei-pnosophist 
Find more incorrect spellings of Deipnosophist to spell right way.