deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
/kvip-enders don't lose roothood.
Or in more words —
rootnouns formed by /kvip are still called /dhAtu even though they are nounbases.
So, when you form a /samAsa like /vizvapA-, that has pA पा + /kvip at the end, the pA- पाॱ is both a nounbase and a root.
This /paribhASA is an exception to the general principle "a /kRt turns a root into a nounbase that is no longer a root".
This rootness is a second-rate citizenship — it will trigger some rules, such as AtodhAtoH, but this pA पा + /kvip is not a root for all intents and purposes. So, don't add a tense after vizvapA- विश्वपाॱ, okay?