ὑπαγωγεύς
From LSJ
νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)
English (LSJ)
έως, ὁ,
A tool for shaping and adjusting bricks or tiles, trowel, Ar.Av.1149 (ubi v. Sch.); cf. Hermipp.69: v. ἐπαγωγεύς. 2 plasterer, IG22.1672.31. II the bridge of a stringed instrument, = ὑποβολεύς, Nicom.Harm.10.
German (Pape)
[Seite 1180] έως, ὁ, 1) eine Maurerkelle; Ar. Av. 1149, Schol. ξυστήρ, πλατὺ σίδηρον, ᾡ ξύουσι τὸν πηλόν; vgl. Poll. 7, 125. – Ein Folterwerkzeug, VLL. – 2) ein beweglicher Steg an Saiteninstrumenten, wie ὑποβολεύς, Nicom. arithm. 2, 27 und Music.