ETYMOLOGY
from Latin magnopere (greatly) (short for magno opere [with great labour, especially, much]) + -ate
EXAMPLE
“…so that after-ages may rightly admire what noble Mecaenas it was that so inchayned the aspiring wits of this understanding age to his only censure, which will not a little magnoperate the splendor of your well knowne honor to these succeeding times…”
From: Baculum Geodæticum
By Arthur Hopton, 1610
Lexicophilia 