postern /posˈtərn or pōˈstərn/

1. A back door or gate
2. A small private door
3. A sallyport (qv under sally¹)

1. (of a door, gate, etc) back
2. Private

• overcareful
• overcarried
• overcarries
• overcarry
• overcarrying
• overcast
• overcasting
• overcastings
• overcasts
• overcatch
• overcatches
• overcatching
• overcaught
• overcautious
• overcharge
• overcharged
• overcharges
• overcharging
• overcheck
• overchecks
• overclad
• overclass
• overclasses
• overclock
• overclocked