Eureka
From BiblePortal Wikipedia
Webster's Dictionary [1]
The exclamation attributed to Archimedes, who is said to have cried out "Eureka! eureka!" (I have found it! I have found it!), upon suddenly discovering a method of finding out how much the gold of King Hiero's crown had been alloyed. Hence, an expression of triumph concerning a discovery.
The Nuttall Encyclopedia [2]
E . I have found it), the exclamation of Archimedes on discovering how to test the purity of the gold in the crown of Hiero ( q. v .); he discovered it, tradition says, when taking a bath.
