Douglas Harper's Etymology Dictionary
Dioscuri
from Greek Dioskouroi, literally "Zeus' boys," from Dios, genitive of Zeus (see Zeus) + kouroi, plural of kouros "boy, son" (see crescent).
Usage examples of "dioscuri".
Celestial Twins, you who are called Castor and Pollux, or the Dioscuri, or the Dei Penates, or any other name you might prefer-you who may be gods or goddesses or of no sex at all-we have come together in your temple because we have need of your intercession with the mighty Jupiter Optimus Maximus-whose offspring you may or may not be-and with the triumphator Hercules Invictus.
The bright spirits of Orison Swett Marden and Ralph Waldo Trine, Dioscuri of Good Cheer, seemed to be with him reminding him that nothing is impossible.