οὐλάς
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English (LSJ)
άδος, ἡ, pecul. fem. of οὖλος (B),
A crisped, crinkled, χαίτη δρυός, of oak-leaves, Nic.Al.260. II as Subst., = πήρα, θύλακος, πτωχῶν οὐ. ἀεὶ κενεή Call.Fr.360 (θυλὰς cj. Ruhnken for οὐλαὶ, κενεή Hecker for κεναί), cf. Hsch. s. vv. θυλίδες, θυλλίς, οὐλάδες, Phot., Sch.Theoc.1.53; restd. for οὖδας in AP7.413 (Antip.).