"Potentiative" Natural Recordings by Native Speakers
Unfortunately, "potentiative" is not a valid word in English language. It does not appear in any reliable dictionaries. It is possible that it is a misspelling or a non-existent word.
However, the correct word might be "potentiate", which means to make something more powerful or effective. It is a rare verb that is not commonly used in everyday language.
It seems there is no word "potentiative". However, a related word is "potentative".