9 letters · 10 points in Scrabble
noun profound scholarly knowledge
originFirst attested in the 15th Century. From Middle French érudition, from Latin eruditio (“an instructing, learning, erudition”), from erudire (“to instruct, educate, cultivate”, literally “free from rudeness”), from e (“out”) + rudis (“rude”). By surface analysis, erudite + -ion.
Etymology from Wiktionary, CC BY-SA 3.0