Hereby (adverb)

By means of this action or statement.

Origin:

From the old english word "hēr" meaning "here" and the middle english word "by" meaning "by means of".

Examples:

1. I hereby declare this meeting officially open.
2. By signing this document, I hereby acknowledge receipt of the goods.
3. The company hereby gives notice of its intention to close the factory.
4. We hereby present our proposal for the project.
5. I, the undersigned, hereby certify that the information provided is true and correct.