Tribution and Revergent are likely plays on con- prefix removal and substitution (contribution, convergent). If they are not part of some jargon, they will be. Similarly, the morphological construction for Unitory (-tory is the latin agency prefix) I can certainly believe it to have jargon usage.
Trephony could be a form of this noun for different grammatical situations: http://www.merriam-webster.com/dictionary/trephone That would suggest to me that it may be a biosciences jargon term already.
I would argue as a descriptivist that revergent is a legit English word - something that was previously divergent that is now tending towards convergence.
I'm not sure if it has been removed from most dictionaries, but
apricity is commonly accepted as "The warmth felt from sunlight". Wiktionary lists it as obsolete though.
Seems you're right about the rest.