castilian

• POS: Adjective, Noun
• HYPHEN: Cas=til=ian

CIDE DICTIONARY

castilian, 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.].

•  An inhabitant or native of Castile, in Spain.  [1913 Webster]
•  The Spanish language as spoken in Castile.  [1913 Webster]

OXFORD DICTIONARY

castilian, n. & adj.
--n.
1 a native of Castile in Spain.
2 the language of Castile, standard spoken and literary Spanish.
--adj. of or relating to Castile.