Related Clues:

• Very small amount - Greek letter
• Greek letter - small quantity
• Greek letter - minimal amount
• Ounce
• Greek equivalent of the letter I
• No more than a smidgen
• Vowel for Plato
• Tiniest bit of the Greek alphabet?
• Little bit of Greek?
• Greek letter provides very little
• Fishy star finally turns up at ten
• Very small amount, a jot
• Merest amount
• Entry on J's family tree
• Frat vowel