coruscate \KOR-uh-skayt\, intransitive verb:
1. To give off or reflect bright beams or flashes of light; to sparkle.
2. To exhibit brilliant, sparkling technique or style.
Whether we know or like it or not, those of us who turn our hands to this task are scribbling in a line of succession which, however uncertainly and intermittently, reaches back to the young Macaulay, who first made his public reputation as a coruscating writer in the 1820s.
-- David Cannadine, "On Reviewing and Being Reviewed", History Today, March 1, 1999