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鬼 — also
魔's indexing radical (Kangxi #194). Direct semantic anchor: a
魔 is a demon or evil spirit, a more sinister cousin of
鬼. From the literal demon came all the modern senses 'magic, devil, fiend, evil' (
魔术 magic-trick,
恶魔 demon,
魔鬼 devil). Same indexing radical in
魂,
魄,
魅.