6 letters · 13 points in Scrabble
originFrom Middle English thewed (“well raised, well mannered, virtuous; habituated, trained”), from Old English ġeþēawod, past participle of Old English þēawian, ġeþēawian (“to make mannered, form the habits or character of a person, educate”), equivalent to thew + -ed.
Etymology from Wiktionary, CC BY-SA 3.0