ὑπομειδιάω
From LSJ
Ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
English (LSJ)
A smile a little or gently, Anacreont.27A.14, Phld.Vit. p.31 J., Plu.Dio20, Hld.7.10, Alciphr.3.3, etc.; ὑ. σαρδάνιον Plb.18.7.6.
German (Pape)
[Seite 1225] ein wenig od. heimlich lächeln, anfangen zu lächeln; Pol. 17, 7,6; Anacr. 27, 14; πρὸς ἐμέ Alciphr. 3, 3; Luc. rhet. praec. 22.