G1484–ἔθνος–ethnos

and the nations of the saved in its light shall walk, and the kings of the earth do bring their glory and honour into it,

ἔθνη ethnē “nations”

and they shall bring the glory and the honour of the nations into it;

ἐθνῶν ethnōn “nations”

in the midst of its broad place, and of the river on this side and on that, `is' a tree of life, yielding twelve fruits, in each several month rendering its fruits, and the leaves of the tree `are' for the service of the nations;

ἐθνῶν. ethnōn “nations.”