Πήγασος
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
English (LSJ)
Dor. Πάγᾰσος [ᾱγ], ὁ, Pegasus, Hes.Th.281, 325, E.Fr. 306, Apollod.2.3.2, Str.8.6.21, Paus.2.4.1, etc. : pl. Πήγασοι, as a sample of prodigies, pl.Phdr.229d, cf. Cic.
A Pro Quinct.25.80, Plin. HN8.72, 10.136 :—Adj. Πηγάσειος [ᾰ], α, ον, πτερόν Ar.Pax76 : fem. Πᾱγᾰσὶς κράνα, Hippocrene, Mosch.3.77, cf. AP11.24 (Antip.).