Demophon
From LSJ
αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
English > Greek (Woodhouse)
Δημοφῶν, -ῶντος, ὁ, or say, son of Theseus.
Latin > French (Gaffiot 2016)
Dēmŏphōn,¹⁶ ontis, m., devin de l’armée d’Alexandre : Curt. 9, 4, 28.
Wikipedia EN
In Greek mythology, Demophon /ˈdɛməˌfɒn, -fən/ (Ancient Greek: Δημοφῶν or Δημοφόων) was a king of Athens. According to Pindar, Demophon was the son of Theseus and Phaedra, brother of Acamas. Some say that Demophon's mother was Iope, daughter of Iphicles. After his father lost the throne of Athens, Demophon grew up as an exile in Euboea with his brother under the care of Elephenor, a relative by marriage.