In Greek mythology, Euonymus (Εὐώνυμος "well-named", an euphemistic epithet) was the son of Gaia by either Uranus or Cephissus. He was the eponym of the deme Euonymeia, Attica, whereas his daughter Aulis gave her name to the city Aulis, Boeotia.
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Euonymus (mythology) Wikipedia(Text) CC BY-SA