Meaning

noun a momentary flash of light

noun North American woodpecker

noun the act of moving back and forth

originFrom Middle English flikeren (“to flutter”), from Old English flicerian, flicorian (“to flutter”), from Proto-West Germanic *flikurōn. Akin to Saterland Frisian flikkerje (“to flicker”), West Frisian flikkerje (“to flicker”), Dutch flikkeren (“to flicker, flutter”), German Low German flickern (“to light up, flash, flicker”). Compare Old English flacor (“flickering, fluttering”), German flackern…

Etymology from Wiktionary, CC BY-SA 3.0