边缘
biānyuán · HSK 6
margin
📏 边 = side/edge + 缘 = rim/fate; together: the edge or margin
边 means side or border; 缘 originally meant the hem or rim of a garment (also fate/affinity). Combined, 边缘 names the outer rim or periphery of something — a margin or brink.
边 — 辶 (walk) + 臱 (phonetic)
边 is the simplified form of 邊. It combines the walking radical 辶 with the phonetic component 臱, suggesting a place reached by walking — the edge or border of a territory. The meaning extended from 'frontier' to 'side' or 'edge' in general.