Webster's Revised Unabridged Dictionary · 1913

Insomuch

Insomuch , adverb

So; to such a degree; in such wise; -- followed by that or as, and formerly sometimes by both. Compare Inasmuch.
Insomusch as that field is called... Aceldama. — Acts i. 19
Simonides was an excellent poet, insomuch that he made his fortune by it. — L'Estrange