Ancient Greek concept of conflict or struggle (4)

I believe the answer is:
agon
(Other definitions for agon that I've seen before include "archaic festival" , "Struggle" , "Greek contest" , "Conflict" , "Stravinsky ballet" .)
I believe the answer is:
agon
(Other definitions for agon that I've seen before include "archaic festival" , "Struggle" , "Greek contest" , "Conflict" , "Stravinsky ballet" .)