sentires

Webster's Dictionary (GCIDE)

Sentry \Sen"try\, n.; pl. Sentires. [Probably from OF. senteret a little patch; cf. F. sentier path, and OF. sente. See Sentinel.]

1.(Mil.) A soldier placed on guard; a sentinel. [1913 Webster]

2.Guard; watch, as by a sentinel. [1913 Webster]

Here toils, and death, and death's half-brother, sleep, Forms terrible to view, their sentry keep.— Dryden.[1913 Webster]

Sentry box, a small house or box to cover a sentinel at his post, and shelter him from the weather. [1913 Webster]