adj. (WALPOLE: nonce word).Blueness.
1754. WALPOLE, Letters, i., 347. [Strawberry Hill] is now in the height of its greenth, BLUETH, gloomth, honeysuckle. Ibid., i., 363. I will not, however, tell you that I am content with your being there, till you have seen it in all its greenth and BLUETH.