Castilian (noun)

1. A person from Castile, a region in central Spain.
2. A dialect of the Spanish language spoken in Castile.
3. A style of Spanish cuisine originating from Castile.

Origin:

From the spanish word 'castellano', meaning 'related to the region of castile in spain'.

Examples:

1. The author was born in Castilian and often incorporates elements of his regional dialect in his writing.
2. The Castilian dialect is known for its distinctive pronunciation and vocabulary.
3. This recipe is a classic example of Castilian cuisine.
4. He always takes great pride in the fact that he's a Castilian.
5. I've been studying Castilian for years, but I still struggle with some of the grammar rules.