An earlier spelling of pedophile/pedophilia was paedo- not pedo-, and was based on the Greek:
1950–55; pedo- 1 + -phile, or directly < Gk paidóphilos loving children
The basis for pedometer is from the French:
1723; < F pédomètre, equiv. to péd- (learned use of L ped- foot (s. of pēs); see pedi- ) + -omètre (see -o-, -meter )http://dictionary.reference.com/browse/p…





















The “pedo-” in pedometer is not actually “pedo-”; it’s “-ped-,” refering to the foot.
“-ped-” has two different meanings, child, and foot.
So, you can choose which to apply.
It means having something to do with children.
ie: pediatrics