What's the diff. between charactonym and eponym: the diff. between ficton and reality?

Edit: eponym sure is close to euonym, isn't it?
euonym
a name well-suited to the person, place or thing named [from Gk eu, good + onym, name] From wwftd.

I would suspect that the difference is, indeed, the difference between fiction and reality. "Lynch" is an eponym, "fagin" a charactonym. I believe "euonym" is synonymous with what we have come to call "aptronym".

>>Edit: eponym sure is close to euonym, isn't it?<<

opposite traffic

opposite traffic The 'up' and down of it?

>>up and down<<

The name and namesake of it: a person is named for a thing/a thing is named for a person

Yep; I was playing on the fact that the orthographic differences between the words are 'u' and 'p'.

ya done gone over ma haid