Critical subtlety in Hellenic etymology (6)

I believe the answer is:

nicety

(Other definitions for nicety that I've seen before include "Subtle point of distinction" , "Fine distinction" , "Delicacy" , "A detail of etiquette" , "Subtle difference" .)

I've seen this clue in The Sun.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.