Greek-English translations for άθλος

• exploit
  The first trek to the summit of Mount Everest was a stunning exploit
  Materialistic monsters who exploit "kind" folks will not have good outcomes, no matter how much comforts were ill-gained
• feat
• labour
  I think weve all got the idea. Theres no need to labour the point.
• tour de force
  Now orbiting Earth, Gravity Probe B is a technological tour de force