Sentineled or Sentinelled: How To spell?
The word Sentineled is misspelled against Sentinelled, which is past tense of "Sentinel"
Sentinelled has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings sentine & ed which should not be misspelled with single 'L'
Wrong Spelling:  sentine-l-ed  Correct Spelling:  sentine-ll-ed 
Find more wrongly spelled words of Sentinelled to spell it well.