10 letters · 15 points in Scrabble
noun a branch of knowledge
noun a system of rules of conduct or method of practice
noun the trait of being well behaved
originFrom Middle English [Term?], from Anglo-Norman, from Old French descipline, from Latin disciplina (“instruction”), from discipulus (“pupil”), influenced by disco (“to learn”), from Proto-Indo-European *dek- (“(cause to) accept”).
Etymology from Wiktionary, CC BY-SA 3.0