Castor from the Greek name Καστωρ (Kastor), possibly related to κεκασμαι (kekasmai) meaning "to excel, to shine" (pluperfect κεκαστο). In Greek myth Castor was a son of Zeus and the twin brother of Pollux. The constellation Gemini, which represents the two brothers, contains a star by this name.
Saintly namesake: Castor of Karden was a 4th-century priest and hermit, honored as a saint. He is one of several saints named Castor. (February 13 · 4th century)
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Names related to Castor through nicknames, language, or historical forms.