whereof

conjunction
where·​of | \ (h)wer-ˈəv How to pronounce whereof (audio) , -ˈäv, (ˌ)(h)wər- \

Definition of whereof

 (Entry 1 of 2)

1 archaic : with or by which
2 : of what knows whereof she speaks
3a : of which books whereof the best are lost
b : of whom

whereof

adverb

Definition of whereof (Entry 2 of 2)

archaic
: of what whereof are you made— William Shakespeare

Examples of whereof in a Sentence

Recent Examples on the Web: Adverb Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction. Michael Harriot, The Root, "Hillary Clinton, Jeff Sessions and America’s Secret Slave System," 12 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'whereof.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of whereof

Conjunction

13th century, in the meaning defined at sense 1

Adverb

13th century, in the meaning defined above

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Time Traveler for whereof

Time Traveler

The first known use of whereof was in the 13th century

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Cite this Entry

“Whereof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/whereof. Accessed 5 Dec. 2020.

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More Definitions for whereof

whereof

conjunction
How to pronounce whereof (audio)

English Language Learners Definition of whereof

formal + old-fashioned : of what

whereof

conjunction
where·​of | \ hwer-ˈəv How to pronounce whereof (audio) , wer-, -ˈäv \

Kids Definition of whereof

: of what : that of which I know whereof I speak.

More from Merriam-Webster on whereof

Nglish: Translation of whereof for Spanish Speakers

Comments on whereof

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