fuzz 1 
(fŭz)
(fŭz)n.
A mass or coating of fine, light fibers, hairs, or particles; down: the fuzz on a peach.
v. fuzzed, fuzz·ing, fuzz·es
v.tr.
1. To cover with fine, light fibers, hairs, or particles.
2. To make blurred or indistinct: fuzzing the difference between the two candidates; worked quickly to fuzz up the details of the scandal.
v.intr.
To become blurred or obscure.
[Perhaps back-formation from FUZZY.]