踏む， 履む， 践む， ふむ
1. to step on, to tread on, to trample on
2. to set foot on (e.g. foreign soil), to stand on, to visit
3. to experience, to undergo
4. to follow (rules, principles, etc.), to go through (e.g. formalities), to complete
5. to estimate, to guess, to jud...
tbd