azure

v. t. To color blue. [ 1913 Webster ]

a. [ F. & OSp. azur, Sp. azul, through Ar. from Per. lājaward, or lājuward, lapis lazuli, a blue color, lājawardī, lājuwardī, azure, cerulean, the initial l having been dropped, perhaps by the influence of the Ar. azr-aq azure, blue. Cf. G. lasur, lasurstein, azure color, azure stone, and NL. lapis lazuli. ] Sky-blue; resembling the clear blue color of the unclouded sky; cerulean; also, cloudless. [ 1913 Webster ]

Azure stone (Min.), the lapis lazuli; also, the lazulite. [ 1913 Webster ]

n. 1. The lapis lazuli. [ Obs. ] [ 1913 Webster ]

2. The clear blue color of the sky; also, a pigment or dye of this color. “In robes of azure.” Wordsworth. [ 1913 Webster ]

3. The blue vault above; the unclouded sky. [ 1913 Webster ]

Not like those steps
On heaven's azure. Milton. [ 1913 Webster ]

4. (Her.) A blue color, represented in engraving by horizontal parallel lines. [ 1913 Webster ]

a. Of an azure color; sky-blue. “The azured harebell.” Shak. [ 1913 Webster ]