足迹
zújī · HSK 7
footprint
👣 足 = foot + 迹 = trace/mark, so a foot-trace is a footprint or track
足 (zú) means foot and 迹 (jī) means trace, mark, or trail left behind. Put them together and you get the mark a foot leaves: a footprint or the track of where someone has been.
足 — top 口 (mouth/enclosure) + bottom 止 (foot)
Originally a pictograph of a leg and foot, with the upper square representing the knee or shin and the lower part 止 depicting the foot itself. It primarily means 'foot' and by extension 'sufficient' or 'enough,' a meaning shift likely from the idea of standing firmly or having a solid footing.