πτέρνις
From LSJ
μή, φίλα ψυχά, βίον ἀθάνατον σπεῦδε, τὰν δ' ἔμπρακτον ἄντλει μαχανάν → Oh! my soul do not aspire to eternal life, but exhaust the limits of the possible. | Do not yearn, O my soul, for immortal life! Use to the utmost the skill that is yours. | Do not, my soul, strive for the life of the immortals, but exhaust the practical means at your disposal.
English (LSJ)
ὁ, a kind of hawk, Arist.HA620a19.
German (Pape)
[Seite 808] ὁ, ein Raubvogel, Arist. H. A. 9, 36, v.l. πέρνης, u. Hesych.
Russian (Dvoretsky)
πτέρνις: v.l. πτερνίς и πτέρνης, εως ὁ птернис (род хищной птицы) Arst.
Greek (Liddell-Scott)
πτέρνις: ὁ, εἶδος ἱέρακος, Ἀριστ. π. τὰ Ζ. Ἱστ. 9. 36, 1.