Related Clues:

• The Greeks had a word for it, I've discovered
• Exclamation from Archimedes
• I've got it!
• Cry of discovery (from Archimedes?)
• Sudden understanding
• 'I've found it!'
• I've found it!
• Cry of triumph (at a discovery)
• Triumphant exclamation of discovery
• Shriek of discovery
• Archimedes's call of triumph
• 'I've discovered it!'
• Cry upon figuring out 66-Across
• It's "eureka!" either way
• 'Here's the answer at last!'