Lewis & Short

Panthŏus and Panthūs, i, m., = Πάνθοος (-ονς),

  1. I. the nephew of Hecuba and father of Euphorbus: Panthus Othryades, Verg. A. 2, 319: Panthous, Hyg. Fab. 115.
    In voc. Panthu, Verg. A. 2, 322.
    Hence,
  2. II. Panthŏĭdĕs, ae, m., the son of Panthous, Euphorbus. Pythagoras maintained that his soul animated the body of Euphorbus at the time of the Trojan war, and for this reason he was called Panthoi des: Panthoides Euphorbus eram, Ov. M. 15, 161: habentque Tartara Panthoiden iterum Orco Demissum, Hor. C. 1, 28, 10.