CASTILIAN

castilian. Castilian, n. a native of Castile in Spain

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Cas‐til″ian (?), n. [[Sp. castellano, from Castila, NL. Castilia, Castella. Castile, which received its name from the castles erected on the frontiers as a barrier against the Moors.]] 1. 1. An inhabitant or native of Castile, in Spain.
2. 2. The Spanish language as spoken in Castile.