IPA: /pəˈdɛstrɪənɪzəm/
KK: /pəˈdɛstrɪənɪzəm/
A type of walking that can be competitive or recreational, often associated with the practice of walking for exercise or enjoyment.
Pedestrianism became popular in the 19th century as a competitive sport.
Pedestrianism is formed from "pedestrian" (from Latin "pedester", meaning relating to foot) and the suffix "-ism" (meaning a practice or belief). The term refers to the practice or belief related to walking or traveling on foot.
Think of 'pedestrian' which relates to 'foot' and remember that 'pedestrianism' is about the practice of walking.