grisled
/ˈɡrɪsld/Definitions
1. verb
to become or make something grey or greyish, typically due to age or weathering
“The stone had grisled over the years, giving it a beautiful patina.”
2. adjective
covered or discolored with greyish dust or stains
“The old, grisled boots were a testament to the hiker’s many adventures.”