πτέρνις
δὶς ἐξαμαρτεῖν ταὐτὸν οὐκ ἀνδρὸς σοφοῦ → a wise man should not keep making the same mistake, a wise man should not repeat the same mistake, doing twice the same mistake is not a wise man's doing, making the same mistake twice does not befit the wise, making the same mistake twice does not belong to a man who is wise, making the same mistake twice does not belong to a wise man, the wise man does not make the same mistake twice, to commit the same sin twice is not a sign of a wise man, it is unwise to err twice
English (LSJ)
ὁ, a kind of A hawk, Arist.HA620a19.
German (Pape)
[Seite 808] ὁ, ein Raubvogel, Arist. H. A. 9, 36, v. l. πέρνης, u. Hesych.
Greek (Liddell-Scott)
πτέρνις: ὁ, εἶδος ἱέρακος, Ἀριστ. π. τὰ Ζ. Ἱστ. 9. 36, 1.
Greek Monolingual
ὁ, Α
είδος γερακιού.
[ΕΤΥΜΟΛ. < πτέρνα ή < πτερόν.
Russian (Dvoretsky)
πτέρνις: v. l. πτερνίς и πτέρνης, εως ὁ птернис (род хищной птицы) Arst.