Eider is a Basque feminine given name. It is a feminine form of Eder 2, which means "handsome, beautiful" in the Basque language. The name Eider is not to be confused with the English surname or the bird called eider, which refers to large seaducks in the genus Somateria. In Basque culture, names related to qualities such as beauty are common, reflecting a tradition of meaningful nomenclature. The name Eider is a variant of Ederne, another Basque feminine name meaning "beautiful". While Eider is occasionally used outside the Basque Country, its usage is most concentrated in the regions where Basque is spoken, including the Basque Country in Spain and France. Meaning: Handsome, beautiful (feminine form of Eder) Origin: Basque Type: First name Gender: Feminine Usage regions: Basque Country