ἐρωτοδιδάσκαλος
From LSJ
ἐν ταῖς ἀνάγκαις χρημάτων κρείττων φίλος → it is better in times of need to have friends rather than money, a friend in need is a friend indeed (Menander, Sententiae monostichoi 143)
English (LSJ)
ὁ, ἡ,
A teacher of the art of love, Ath.5.219d.
German (Pape)
[Seite 1041] ὁ, ἡ, Lehrer, Lehrerinn der Liebe, Ath. V, 219 d.
Greek (Liddell-Scott)
ἐρωτοδῐδάσκᾰλος: ὁ, ἡ, διδάσκαλος τῆς τέχνης τοῦ ἐρᾶν, Ἀθήν. 219D.