ped/pod = foot

  1. biped (n) a creature with two feet

  2. centipede (n) a creature with 100 feet

  3. impediment (n) something that stands in one’s way; an obstacle

  4. millipede (n) a creature with 1,000 feet

  5. pedal (n) a lever that is moved with one’s foot

  6. peddler (n) a person who goes from door to door on foot trying to sell a product

  7. pedestrian (n) a person who walks across the street on foot

  8. pedicure (n) a foot treatment that could include soaking the feet and polishing the toenails

  9. quadruped (n) a four-footed creature

  10. tripod (n) a three-footed stand often used to balance a camera