ἀκαλός
From LSJ
κοινὸν τύχη, γνώμη δὲ τῶν κεκτημένων → good luck is anyone's, judgment belongs only to those who possess it
English (LSJ)
ή, όν, (ἀκᾶ, ἀκήν)
A peaceful, still, ἀκαλὰ προρέων, of a river, Hes.Fr.218; ἄκαλα κλόνει Sapph.Supp.19, cf. Hsch . . Eust.1009.30, EM44.29. Adv. -λῶς Eust. 1871.54. ἀκάλως, Adv., (καλός) unwell, ἐὰν οὐκ ἀ. ἔχῃς, χαίρω POxy.1676.22 (iii A.D.).