The relation of a word to its base. e.g. happiness and unhappy from
happy (in contrast to the process of inflection). Ascertaining or stating the derivation of a word. The source, origin, descent or origination. Similar to Etymology.
Is there a term for words like Snowmageddon, Nipplegate and even cheeseburger?
I know they're portmanteaus (or portmanteaux), but they seem to belong to a special class of portmanteau.
In the title ...