Udmurt adversary / sacred-grove power; spirit rendered as deity per schema. English 'Keremet, Lord of the Sacred Grove' leads (no plainer single English word fits); native Кереметь (Keremet') / Луд (Lud) in term. Keremet'/Šaitan are loan-origin names (Volga-Tatar / Islamic) for the indigenous adversary, also called Lud-kuzё 'master of the field/grove'.