足跡
あしあと · ashiato · JLPT N2 · noun
footprint
👣 足 ashi foot + 跡 ato trace = the trace a foot leaves behind
足 (ashi) means foot or leg. 跡 (ato) means mark or trace, and it is read the same as 後 (ato, after): a footprint is what stays after the foot has gone. Ashi + ato = ashiato.
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.