Whereof (conjunction)

Of which; of what.

Origin:

Middle english: from where + of.

Examples:

  1. I want to know whereof you speak.
  2. Whereof does this story tell?
  3. He was uncertain as to the whereof of the noise.
  4. Whereof is this matter composed?
  5. Whereof do you accuse me?
Some random words: perpetrate, contaminant, immovable