verb (used without object)
to study intensely; grind.
verb (used with object)
to confuse (someone); make (someone) muzzy.
Origin of muzz
First recorded in 1765–75; back formation from muzzy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(tr) British informal to make (something) muzzy
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