11 letters · 17 points in Scrabble
noun a concise reference book providing specific information about a subject or location
originEither via Latin enchīridion or directly, from Ancient Greek ἐγχειρίδιον (enkheirídion, “handbook, manual”), from ἐν (en, “in”) + χείρ (kheír, “hand”) + -ίδιον (-ídion).
Etymology from Wiktionary, CC BY-SA 3.0