While browsing the tvtropes.org entry for Archetypal Characters, this sentence jumped out at me:
A related concept is the 'ectype', a distorted or flawed version of the archetype.
Ectype does not appear in my local dictionary and online searches seem to provide a completely different definition:
ectypal — Copied, as contrasted with an archetypal original. Has a specialized sense when used by the philosopher George Berkeley. (wiktionary)
This does not seem to be a common word and I get the feeling that it is still jargon from one field or another. The tvtropes article considers an ectype a specifically flawed copy; the dictionary definitions don't mentioned the quality of the copy. I have no idea what Berkeley's philosophies are — is this something he coined?