G4192–πόνος–ponos

For I bear him witness that he labours much for you, and them in Laodicea, and them in Hierapolis.

πόνον ponon “labour”

And the fifth poured out his bowl on the throne of the beast; and its kingdom became darkened; and they gnawed their tongues with distress,

πόνου ponou “distress”

and blasphemed the God of the heaven for their distresses and their sores, and did not repent of their works.

πόνων ponōn “distresses”

And he shall wipe away every tear from their eyes; and death shall not exist any more, nor grief, nor cry, nor distress shall exist any more, for the former things have passed away.

πόνος ponos “pain”