Lusitania / lu:si’teiniǝ/ – noun
An ancient region of the W Iberian Peninsula: a Roman province from 27 bc to the late 4th century; including approximately all of modern Portugal south of the Douro. It was named after the Lusitani or Lusitanian people.
Lusitania was and is often used as an alternative name for Portugal, especially in formal and literary or poetic contexts. In common use are such terms as Lusophone, meaning Portuguese-speaking, and Lusitanic, referring to the Community of Portuguese Language Countries.