What is the name of the term for when someone transforms a noun into an adjective by appending
-ish to the end of the noun? I see this in cases where an appropriate adjective doesn't readily come to mind or the word itself is somewhat esoteric.
For example, when a colleague was trying to differentiate between the tastes of a food, he said the food tasted "capsaicin-ish" to describe the "piquantness" as opposed to the flavor (spice) or physical temperature (heat) of the dish.
Another example was when a friend had a sore throat, and a deep voice as a result. We noted he sounded very "Batman-esque".
Is there an official term this transform?