Eureka (word)

Archimedes exclaiming Eureka. In his excitement, he forgets to dress and runs nude in the streets straight out of his bath (drawing by Pietro Scalvini, engraving by Carlo Orsolini, 1737)

Eureka (Ancient Greek: εὕρηκα, romanized: héurēka) is an interjection used to celebrate a discovery or invention. It is a transliteration of an exclamation attributed to Ancient Greek mathematician and inventor Archimedes.