Hypogayn or Hypogean: How To spell?
The word Hypogayn is misspelled against Hypogean, an adjective meaning "Hypogeous."
Hypogean has vowels 'ea' together mispronounced as 'ay'Word contains consecutive vowels 'EA' in between alphabets hypog & n is misspelled as 'AY'
Wrong Spelling:  hypog-ay-n  Correct Spelling:  hypog-ea-n 
Find more incorrect spellings of Hypogean to spell right way.