Grizzle /(?)/

Griz·zle

Grizzle

n.
  1. Gray; a gray color; a mixture of white and black.

Grizzle

v. t. & i.
  1. To make or become grizzly, or grayish.
    Hardship of the way such as would grizzle little children.
    — R. F. Burton.
    I found myself on the Nubian desert shaking hands with a grizzling man whom men addressed as Collins Bey.
    — Pall Mall Mag.

Grizzle

v. i. & t.
  1. To worry; to fret; to bother; grumble. [Prov. Eng.]