6 letters · 12 points in Scrabble
noun one bound by vows to a religion or life of worship or service
noun a priest or priestess (or consecrated worshipper) in a non-Christian religion or cult
noun a devoted (almost religiously so) adherent of a cause or person or activity
originFrom Latin votus, past participle of vovere (“to vow, to devote”).
Etymology from Wiktionary, CC BY-SA 3.0