From Middle English graynes, greynes; equivalent to grey + -ness.
greyness (countable and uncountable, plural greynesses)
- The state or quality of being grey.
1947 January and February, O. S. Nock, “"The Aberdonian" in Wartime”, in Railway Magazine, page 8:
The sight of them [the Grampians] as we crossed the viaduct over the North Esk I am not likely to forget. After a night of snow, they hung wraith-like across the sky, exquisitely beautiful in the greyness of winter dawn.
The state or quality of being grey