לָמַד
From LSJ
Γράμματα μαθεῖν δεῖ καὶ μαθόντα νοῦν ἔχειν → Prudentia opus est, ubi didiceris litteras → Das Lesen lerne, Schreiben, und dann aufgepasst
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).