There's a Greek god hiding in the word 'panic'.

Somewhere deep in the ancient Greek wilderness, the god Pan was having a bad day — and he wanted everyone to know it. Pan, the goat-legged deity of wild places, flocks, and untamed nature, was said to lurk in forests and mountain passes. When travellers stumbled through his territory, he would let out a shriek so sudden and so wrong that it bypassed rational thought entirely and hit something older, deeper, and faster.

The Greeks called that specific terror *panikon deima* — 'panic fear', literally the dread that belongs to Pan. The adjective *panikos* passed into Latin, then into Old French as *panique*, and by the 17th century English speakers were using 'panic' as both adjective and noun. The god never made the journey; only his scream did.

What's remarkable is how precisely the word still works. Modern neuroscience describes a panic response as subcortical — it fires before the conscious brain even registers a threat. The ancient Greeks, working only from experience, had already named that gap between stimulus and thought. They just put a goat-legged god in it.

Pan himself eventually faded. But every time a crowd stampedes, a market crashes overnight, or a hiker bolts from a snapping twig, his name is the one that sticks.