In common speech it's never used alone, but only as, as you said, a root, e.g. carnivore, omnivore. Just vore alone I've only ever heard to mean exactly one thing, and it's the NSFW one.
Different root word (pedi- means foot by way of Latin, and shouldn't be confused with Latin words like pedicare [provocative/aggressive verb meaning 'to buttfuck' (usually bowdlerized as something like 'to bugger')] which are also derived from the Greek pedo-)
Growing up, on the playground, you said, "actually what you just said is a symbol of power of the Roman consuls, so I will take that as a compliment.", didn't you?