Whereof Definition
wâr-ŏv, -ŭv, hwâr-
conjuntion
Of what.
I know whereof I speak.
American Heritage
Of which.
Ancient pottery whereof many examples are lost.
American Heritage
Of whom.
American Heritage
adverb
Of what.
American Heritage
Of what, which, or whom.
The things whereof he spoke.
Webster's New World
(archaic) Of what.
Wiktionary
(archaic) Of which.
Wiktionary
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