The phenomenon you're referring to, I believe, is called Suffixaufnamen, and my morphology professor told
me that a dude name Franz Planck (that name can be spelled four different ways; I chose one.  It might not be
right) wrote a whole book on it.  Also, this is most common in Australian languages, so that's a place to start,
but it can also  happen in Georgian.  For example:

/sister-genitive-epenthetic vowel-dative/
"to something belonging to one's sister"

"sunly eleSkarez ygralleryf ydZZixelje je ox2mejze."
"No eternal reward will forgive us now for wasting the dawn."

-Jim Morrison