Tenailon or Tenaillon: How To spell?

The word Tenailon 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."

Tenaillon has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings tenai & on which should not be misspelled with single 'L'
Wrong Spelling:  tenai-l-on 
Correct Spelling:  tenai-ll-on 
Find more incorrect spellings of Tenaillon to spell right way.