Tenullon or Tenaillon: How To spell?

The word Tenullon 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 'U'
Wrong Spelling:  ten-u-llon 
Correct Spelling:  ten-ai-llon 
Check more misspelled words of Tenaillon to spell it correct.

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