Zelus (translated as zeal or glory) was the son of the Titan Pallas and Oceanid Styx, and the brother of Nike (victory), Bia (force), and Kratos (strength).
Zelus was a lesser deity that personified dedication, emulation, eager rivalry, envy, jealousy, and zeal. The English word "zeal" is derived from his name
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en.wikipedia.org/wiki/Zelus