Meaning

noun a light within the field of vision that is brighter than the brightness to which the eyes are adapted

noun an angry stare

noun a focus of public attention

originFrom Middle English glaren, from Old English *glærian, from Proto-West Germanic *glarōn. Cognate with dialectal Middle Dutch glariën (“to glisten; sparkle”), Low German glaren (“to shine brightly; glow; burn”), Middle High German glaren (“to shine brightly”). Related to glower, glass.

Etymology from Wiktionary, CC BY-SA 3.0