afoot

adjectives

traveling by foot
"she was afoot when I saw her this morning"
is similar to
in motion
"a constantly moving crowd"; "the moving parts of the machine"
currently in progress
"there is mischief afoot"; "plans are afoot"; "preparations for the trial are underway"

adverbs

on foot; walking
"they went to the village afoot"; "quail are hunted either afoot or on horseback"