5 letters · 9 points in Scrabble
originFrom Japanese オタク (otaku, “geek, nerd”) originally used in reference to the 1982 Macross fandom, from the honorific form お宅 (otaku, “you”), from the honorific form 宅 (taku, “home”) ("your home").
Etymology from Wiktionary, CC BY-SA 3.0