I have recently come across the word "aptronym", which was explained in the text as "a symbolic or allusive label name". One example given was a contemporary character named Percy whose actions linked him unmistakeably, though not explicitly, with Knight Percival from the Arthurian legends. About "aptronym", though, does anybody know whether it is directly derived from Greek (as are "synonym" and "antonym"), or whether it has been formed by uniting "apt" (since the name is apt for the character it designates) with the "nym" part of the Greek-origin words? -- something like a coinage by analogy...