Right-side
阝 is the city/town radical — the side-form of
邑 when it sits on the right (versus mound
阜 when on the left). Indexes
邪 in the place-name family with
都,
邦,
部,
邮. The original
邪 was the name of a state in Shandong; only later did it acquire its abstract 'crooked / evil' meaning.