Eurekha!

The word "Eurekha!" (often spelled "Eureka!") is an exclamation used to celebrate a discovery or invention. It is derived from the Ancient Greek word "εὕρηκα" (heúrēka), meaning "I have found (it)!"

The exclamation is famously attributed to the ancient Greek scholar Archimedes. Legend has it that Archimedes exclaimed "Eureka!" when he realized that he could determine the volume of an irregularly shaped object by submerging it in water, solving a problem posed by King Hiero I of Syracuse regarding the purity of a golden crown.

"Eureka!" has since become a widespread and recognizable expression of joy and triumph upon making a discovery or solving a problem, and is used across various fields, from scientific research to everyday life. It signifies a moment of sudden insight and understanding.