οὔλω
From LSJ
ἀεὶ δ' ἀρέσκειν τοῖς κρατοῦσιν → always try to please your masters, always be obsequious to the masters
English (LSJ)
(οὖλος A)
A to be whole or sound (τὸ γὰρ οὔλειν ὑγιαίνειν Str.14.1.6), used by Hom. in imper. οὖλε, as a salutation, health to thee, οὖλέ τε καὶ μάλα χαῖρε health and joy be with thee, Od.24.402, cf.h.Ap.466:— a form οὐλέω is cited by Hsch. (οὐλείοιεν· ἐν ὑγείᾳ φυλάσσοιεν) and Greg. Cor.p.491S.
German (Pape)
[Seite 414] ganz, heil sein, gesund sein, kommt nur im imperat. οὖλέ τε καὶ μέγα χαῖρε vor, Od. 24, 402, H. h. Apoll. 466, sei heil, wohl, Glück zu! vgl. Buttmann Lexil. I, 190. Nach Hesych. auch οὐλέω.