herein
adv.inside this document or piece of writing. You use this in formal letters or legal papers to point to information you have already included.
adv.contained within this document, text, or statement. Used primarily in legal, academic, or formal administrative contexts to refer to the immediate written work.
“The terms and conditions are listed herein.”
“Please review the safety protocols described herein before operating the heavy machinery.”
“The parties agree that the covenants contained herein shall be binding upon their respective successors and assigns for the duration of the contract.”
Typically used in formal or legal writing; often placed after the noun it refers to or at the end of a clause.
From Middle English here-inne, her-in, her-inne, hier-ine, from Old English hērinne, from Proto-West Germanic hērinna, from Proto-Germanic hē₂rinna, equivalent to here + in. Cognate with West Frisian hjiryn (“herein”), Dutch hierin (“herein”), German hierin (“herein”), Danish heri (“herein”), Swedish häri (“herein”), Icelandic hér í (“herein”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.