grisonner[Français]

adjectif satellite
1 : showing characteristics of age, especially having grey or white hair; "whose beard with age is hoar"-Coleridge; "nodded his hoary head"
2 : of an achromatic color of any lightness intermediate between the extremes of white and black; "the little grey cells"; "gray flannel suit"; "a man with greyish hair"
3 : darkened with overcast; "a dark day"; "a dull sky"; "the sky was leaden and thick"
nom
1 : any organization or party whose uniforms or badges are grey
2 : clothing that is a grey color
verbe
1 : turn grey