Definition of "wherein" []

• In what way; how: Wherein have we sinned? (adverb)
• In which location; where: the country wherein those people live. (conjunction)
• During which. (conjunction)
• In what way; how: showed them wherein they were wrong. (conjunction)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And wherein is any argument that any of them is going to try?"
• "That is absolutely the case, and in order for it to work, it's necessary to come into relationship with your word wherein you honor it as the most powerful tool you have for creating and manifesting your life."
• "Leonardo da Vinci states that practice should always be based upon a sound knowledge of theory, of which perspective – wherein is found the glory not only of mathematical but also of physical science"