You searched for: “pedomancy
pedomancy, podomancy (s) (noun) (no pl)
Divination by observing and analyzing the soles or bottoms of feet: Pedomancy can be interpreted in terms of lines and mounts of a foot, exactly as in cheiromancy or palmistry, but to a greatly limited degree.

This mode of divination is of great antiquity in the Orient, particularly among the Chinese.