n. & adj.
n. 1 a a deep sky-blue colour. b Heraldry blue. 2 poet. the clear sky.
adj. 1 a of the colour azure. b Heraldry blue. 2 serene, untroubled.
[ ME f. OF asur, azur, f. med.L azzurum, azolum f. Arab. al the + lazaward f. Pers. lazward lapis lazuli ]