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thereinafter

American  
[thair-in-af-ter, -ahf-] / ˌðɛər ɪnˈæf tər, -ˈɑf- /

adverb

  1. afterward in that document.

thereinafter British  
/ ˌðɛərɪnˈɑːftə /

adverb

  1. formal from this point on in that 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 thereinafter

First recorded in 1810–20; therein + 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.