posternn.
英 'pɒst(ə)n; 'pəʊst- | 美
中文n. 后门，边门；暗道\nadj. 后门的；后面的
后门，边门；暗道
adj. 后门的；后面的
词根词源
postern (n.)late 13c., "back door, private door," from Old French posterne "side or rear gate," earlier posterle, from Late Latin posterula "small back door or gate," diminutive of Latin posterus "that is behind, coming after, subsequent," from post "after" (see post-).
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