keep, donjon, bergfried (main defensive tower of a castle or fortress, located within the castle walls, often free-standing)
çekim: çoğul Bergfriede · tamlayan Bergfriedes
eş: Burgfried
köken: From Middle High German bercvrit, bervrit, bervride. Further etymology unknown. A common folk etymology is the derivation from bergen (“to protect”) and Frieden (“peace”). Cognate with English belfry.