Dioscuri
plural noun
Di·os·cu·ri ˌdī-ə-ˈskyu̇r-ˌī 
dī-ˈä-skyə-ˌrī
dī-ˈä-skyə-ˌrī : the twins Castor and Pollux reunited as stars in the sky by Zeus after Castor's death and regarded as patrons of athletes and sailors
Word History
Etymology
New Latin, from Greek Dioskouroi, literally, sons of Zeus, from Dios (genitive of Zeus; akin to Latin divus divine) + kouroi, plural of kouros, koros boy — more at deity, crescent
First Known Use
1640, in the meaning defined above