ὑπᾰγωγ-εύς · hypagōg-eus — LSJ
tool for shaping and adjusting bricks, tiles, trowel
tool for shaping and adjusting bricks or tiles, trowel, Ar. Av. 1149 (ubi v. Sch.); cf. Hermipp. 69: v. ἐπαγωγεύς.
2 plasterer
plasterer, IG 2(2).1672.31.
II the bridge of a stringed instrument
the bridge of a stringed instrument, = ὑποβολεύς, Nicom. Harm. 10.