noun, noun or participle which takes 'suru'
Formal or literary term for traveling by foot, often contrasted with using vehicles. In modern Japanese, 徒歩 (とほ) is far more common.
彼は駅から徒行で会場に向かった。
He headed to the venue on foot from the station.
昔の旅は
In the old days, traveling on foot was the norm.