Ped
Foot
Biped
A creature with two feet
Centipede
A creature eith 100 feet
Impediment
Something that stands in ones way; on obstacle
Millipede
A creature with 1,000 feet
Pedal
A lever that is moved with ones foot
Peddler
A person who goes from door to door on foot trying to sell
a product
Pedestrian
A person who walk's across the street on foot
Pedicure
A foot treatment that could includ soaking the and polishing the toenails
Tripod
A three footed stand often used to balance a camera
Quadiuped
A four footed creature