Tenyllon or Tenaillon: How To spell?

The word Tenyllon is misspelled against Tenaillon, a noun meaning "A work constructed on each side of the ravelins, to increase their strength, procure additional ground beyond the ditch, or cover the shoulders of the bastions."

Word contains consecutive vowels 'AI' in between alphabets ten & llon is misspelled as 'Y'
Wrong Spelling:  ten-y-llon 
Correct Spelling:  ten-ai-llon 
Find more incorrect spellings of Tenaillon to spell right way.

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