footpad

Short definition from Wiktionary

Noun

1. 1
   The soft underside of an animal's paw.
2. 2
   A medicated bandage for the treatment of corns and warts.
3. 3
   A thief on foot who robs travellers on the road.
4. 4
   An unmade, minor walking trail formed only by foot traffic.

Verb

1. 1
   To rob travellers on the road.
2. 2
   To sneak on foot.