0 of which or what:
She knows whereof she speaks (= she has direct experience or knowledge of what she is talking about).
He sees hostility, the cause whereof he does not know.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
NEW WORDS
European
May 10, 2021
WORD OF THE DAY
Shimmer
whereof