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In Meilah 17b there's a story about a shed (שד) named Ben-Temalion who assisted Rashbi. Rashi there writes: "בן תמליון - שד שקורין נוטיו"ן". Translation: Ben-Temalion - a type of shed called a "nutiun". According to this list of la'azei Rashi: "nutiun - little demon". How did Rashi know that...