εὐκέφαλος
From LSJ
τούτων γάρ ἑκάτερον κοινῷ ὀνόματι προσαγορεύεται ζῷον, καί ὁ λόγος δέ τῆς οὐσίας ὁ αὐτός → and these are univocally so named, inasmuch as not only the name, but also the definition, is the same in both cases (Aristotle, Categoriae 1a8-10)
English (LSJ)
ον,
A with a good head, Arr.Cyn.4.4 (del. Hercher), Poll. 2.43, Hippiatr.115.
German (Pape)
[Seite 1074] mit gutem Kopf, Arr. cyn. 4, 4.