verb (used without object), cor·us·cat·ed, cor·us·cat·ing.
to emit vivid flashes of light; sparkle; scintillate; gleam.
Origin of coruscate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(intr) to emit flashes of light; sparkle
Word Origin for coruscate
C18: from Latin coruscāre to flash, vibrate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1705, from Latin coruscatus, past participle of coruscare "to vibrate, glitter," perhaps from PIE *(s)ker- (2) "leap, jump about" (cf. scherzo). Related: Coruscated; coruscating.
Online Etymology Dictionary, © 2010 Douglas Harper