Lewis & Short

candesco, ui, 3,

  1. I. v. inch. n. [candeo], to become of a bright, glittering white, to begin to glisten or radiate (rare; mostly poet.): ut solet aër candescere solis ab ortu, Ov. M. 6, 49; Tib. 1, 10, 43.
  2. II. To begin to glow, to grow red hot: ferrum candescit in igni, Lucr. 1, 491; Ov. M. 2, 230; Vitr. 7, 9 fin; cf. candeo fin.