country on the west side of the Iberian peninsula, late 14c., Portyngale, from Medieval Latin Portus Cale (the Roman name of modern Oporto), "the port of Gaya," from Latin portus "harbor, port" (see port (n.1), also port (n.5)). Alfonso, Count of Portucale, became the first king of Portugal.

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Definitions of Portugal from WordNet

Portugal (n.)
a republic in southwestern Europe on the Iberian Peninsula; Portuguese explorers and colonists in the 15th and 16th centuries created a vast overseas empire (including Brazil);
Synonyms: Portuguese Republic