Prefix
where-
Which, what, whom: compounded with prepositions to form compound relative and interrogative pronouns.
of → whereof (“of which, of what, of whom”)
We're now 40 years into the experiment of letting giant corporations accumulate more and more power. And where- - what have we gotten from it? Less growth, weakened investment, fewer small businesses. Too many Americans who feel left behind. Too many people who are poorer than their parents. Joe Biden