The Collaborative International Dictionary
Sentinelled
Sentinel \Sen"ti*nel\, v. t. [imp. & p. p. Sentineledor Sentinelled; p. pr. & vb. n. Sentineling or Sentinelling.]
To watch over like a sentinel. ``To sentinel enchanted land.'' [R.]
--Sir W. Scott.To furnish with a sentinel; to place under the guard of a sentinel or sentinels.
Wiktionary
sentinelled
vb. (en-past of: sentinel)