μυθητήρ
From LSJ
ἀλλὰ διὰ τῆς ἀγάπης δουλεύετε ἀλλήλοις. ὁ γὰρ πᾶς νόμος ἐν ἑνὶ λόγῳ πεπλήρωται, ἐν τῷ Ἀγαπήσεις τὸν πλησίον σου ὡς σεαυτόν → but be enslaved to each other through love; for the whole Torah is fulfilled in one statement: You will love your neighbor as yourself (Galatians 5:13f.)
German (Pape)
[Seite 214] ῆρος, ὁ, = Folgdm, Hesych. erkl. στασιαστής.
Greek (Liddell-Scott)
μῡθητήρ: μῡθητής, ὁ, μυθιήτης, Ἡσύχ., Εὐστάθ. σελ. 1901, 47.