Cyrus carries a genuinely contested etymology, with scholars proposing links to the sun, to the throne, or to a word for far-sighted, and no single reading has settled the debate. Across all three threads runs an association with vision and prominence -- a name historically tied to founders and rulers rather than followers.
Superiour Planets because they most resist, they do not easily receive a detriment or assistance from the Inferiour Planets. - William Lilly (1602.-1681.)