Irrelevant to your point, but I hadn't heard “onymous” as the antonym of “anonymous” before, thank you for that.
http://www.etymonline.com/index.php?allowed_in_frame=0&searc...
Given that the English (/Germanic) is "name" and the French is "nom", I would have expected the PIE for name to be some sort of "nVm"-ish thing, whence I expected the Greek to render it is some sort of "non"-ish thing. The actual Greek is ónoma, with the PIE being something like *hnómn. (So my PIE guess was right-ish, but the transition to Hellenic was wrong).