postern

pos·tern

noun \ˈpōs-tərn, ˈpäs-\

Definition of POSTERN

1

: a back door or gate

2

: a private or side entrance or way

— postern adjective

Origin of POSTERN

Middle English posterne, from Anglo-French, alteration of Old French posterle, from Late Latin posterula, diminutive of postera back door, from Latin, feminine of posterus

First Known Use: 14th century