Found:

latinate affix

MORPHOLOGY: a term used for affixes which are derived historically from Latin (or Greek), and which only co-occur with Latin or Greek roots. EXAMPLE: the English suffix -ion cannot be used with native (Germanic) verb roots (*breaktion), while it attaches freely to latinate ones (deduction).

LIT.	Aronoff, M. (1976) Spencer, A. (1991)