The word "踪迹" is formed by combining two characters: "踪" is a phono-semantic character composed of the radical "足" (foot) for semantic meaning and "宗" for phonetic indication, relating to tracks left by feet; "迹" is similarly structured with the radical "辶" (movement) for meaning and "亦" for sound, denoting marks or impressions. Together, they form a compound word where both characters contribute semantically aligned concepts of traces or footprints resulting from movement.