to such an extent or degree; so (usually followed by that).
inasmuch (usually followed by as).
Origin of insomuch
1350–1400; Middle English; orig. phrase in so much
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for insomuch asseeing, because, for, now, pending, since, as, although, though, while, considering
(foll by as or that) to such an extent or degree
(foll by as) because of the fact (that); inasmuch (as)
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
late 14c. as a phrase; tending to be run together from 16c.
Online Etymology Dictionary, © 2010 Douglas Harper
see inasmuch as.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.