A Latin term for a castle, fort, or fortified stronghold; the source word from which most European 'castle' words derive.
Latin 'castellum' (fort, fortified camp), originally a diminutive of 'castrum' (Roman military camp). The term evolved from describing Roman military installations to the medieval castles that became symbols of feudal power.
The word 'castellum' literally started as Roman soldier slang meaning a 'little camp'—but it evolved into the term for the massive stone fortresses that dominated medieval Europe. It's wild how a casual military term became architectural royalty!
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