Postern /(?)/
Pos·tern
Postern
n.
-
Originally, a back door or gate; a private entrance; hence, any small door or gate.
He by a privy postern took his flight.
Out at the postern, by the abbey wall.
- A subterraneous passage communicating between the parade and the main ditch, or between the ditches and the interior of the outworks. (Fort.)
Postern
a.
- Back; being behind; private.