The story
From lightning + bug, because the insects glow; whence also firefly. Compare glow fly, glowworm, and lanternfly.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A firefly. Full definition →
From lightning + bug, because the insects glow; whence also firefly. Compare glow fly, glowworm, and lanternfly.
Etymology from Wiktionary, CC BY-SA 4.0.