Castilian
Pronunciation : Cas*til"ian
Part of Speech : n.
Etymology : [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.]
Definition : 1. An inhabitant or native of Castile, in Spain.
2. The Spanish language as spoken in Castile.
Source : Webster's Unabridged Dictionary, 1913