G1484–ἔθνος–ethnos

And the nations of them who are saved shall walk in the light of it: and the kings of the earth bring their glory and honor into it.

ἔθνη ethnē “nations”

And they shall bring the glory and honor of the nations into it.

ἐθνῶν ethnōn “nations”

In the midst of the street of it, and on each side of the river, was there the tree of life, which bore twelve kinds of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations.

ἐθνῶν. ethnōn “nations.”