Panic comes from Pan, the wild goat-god blamed for sudden fear in herds and armies.
Pan was the half-goat god of the wild. Greeks blamed him for the sudden, unexplained fear that could sweep over a herd or an army. That fear was 'panikos': of Pan.
A cattle stampede at night was exactly what Greeks would have blamed on Pan.
Before you panic about a bad week of numbers, check whether it's a pattern or noise.
Practice it in Skepsis