From Latin 'eruditus' (polished) — 'e-' (out) + 'rudis' (rough). Education as the removal of roughness from a raw mind.
Having or showing great knowledge, learning, or scholarship; deeply and broadly well-read.
From Latin 'eruditus' (learned, well-instructed), past participle of 'erudire' (to educate, to instruct, to polish), from 'e-' (out of) + 'rudis' (rough, raw, untrained, unformed). The etymological image is of removing roughness — polishing a raw student into a refined scholar, as a sculptor removes excess stone to reveal the form within. An erudite person has had the crudeness trained out of them. The same root 'rudis' gives us 'rude' (originally 'rough, unformed') and 'rudiment' (a first rough element