Hypogeyn or Hypogean: How To spell?

The word Hypogeyn is misspelled against Hypogean, an adjective meaning "Hypogeous."

Hypogean has vowels 'ea' together mispronounced as 'ey'
Word contains consecutive vowels 'EA' in between alphabets hypog & n is misspelled as 'EY'
Wrong Spelling:  hypog-ey-n 
Correct Spelling:  hypog-ea-n 
Find more incorrect spellings of Hypogean to spell right way.

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