ἰοβάπτης
From LSJ
πείθεται πᾶς ἥδιον ἢ βιάζεται (Dio Cassius, Historiae Romanae 8.36.3) → it's always more pleasant to be persuaded than to be forced
English (LSJ)
[ῐ], ου, ὁ,
A violet-dyer, Gloss.
German (Pape)
[Seite 1255] ὁ, der Violetfärber.
Greek (Liddell-Scott)
ἰοβάπτης: -ου, ὁ, ὁ βαφεὺς ὅστις βάπτει μὲ χρῶμα τοῦ ἴου, Γλωσσ.