"greyed" in the verb sense
1. grey, gray
make grey
"The painter decided to grey the sky"
2. grey, gray
turn grey
"Her hair began to grey"
"greyed" in the adjective sense
1. dulled, greyed
deprived of color
"colors dulled by too much sun"
"greyed with the dust of the road"
Source: WordNet® (An amazing lexical database of English)
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