φίλαθλος
From LSJ
γλυκύ δ᾽ἀπείρῳ πόλεμος, πεπειραμένων δέ τις ταρβεῖ προσιόντα, νιν καρδίᾳ περισσῶς → A sweet thing is war to the inexperienced, but anyone who has tasted it trembles at its approach, exceedingly, in his heart (Pindar, for the Thebans, fr. 110)
English (LSJ)
ον,
A fond of games (i e. as a competitor), Ph.1.268, Ptol.Tetr.166; θεός Plu. 2.724b: metaph., fond of exertion, διάνοια, νοῦς, Ph.1.543,523; also γυμνάσια φ. IG3.1344.
German (Pape)
[Seite 1274] den Kampf liebend, Plut. u. a. Sp.; VLL. erkl. φιλόπονος. S. auch φιλάεθλος.