Dictionary.com
Thesaurus.com
Synonyms

hereinafter

American  
[heer-in-af-ter, -ahf-] / ˌhɪər ɪnˈæf tər, -ˈɑf- /
Also hereinbelow

adverb

  1. afterward in this document, statement, etc.

hereinafter British  
/ ˌhɪərɪnˈɑːftə /

adverb

  1. formal in a subsequent part or from this point on in this document, statement, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of hereinafter

First recorded in 1580–90; herein + after

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.