Souterrayn or Souterrain: How To spell?
The word Souterrayn is misspelled against Souterrain, a noun meaning "A grotto or cavern under ground."
Word contains consecutive vowels 'AI' in between alphabets souterr & n is misspelled as 'AY'Wrong Spelling:  souterr-ay-n  Correct Spelling:  souterr-ai-n 
Check more misspelled words of Souterrain to spell it correct.