לָמַד
From LSJ
Θεράπευε τὸν δυνάμενον, ἄνπερ νοῦν ἔχῃς (αἰεί σ' ὠφελεῖν) → Si mens est tibi, coles potentes qui sient → Dem Mächtigen sei zu Willen, bist du bei Verstand (Sei immer dem zu Willen, der dir nützen kann)
English (Strong)
a primitive root; properly, to goad, i.e. (by implication) to teach (the rod being an Oriental incentive):(un-) accustomed, X diligently, expert, instruct, learn, skilful, teach(-er, - ing).