G1482–ἐθνικός–ethnikos

And if you say, Good day, to your brothers only, what do you do more than others? do not even the Gentiles the same?

ἐθνικοὶ ethnikoi “Gentiles”

And in your prayer do not make use of the same words again and again, as the Gentiles do: for they have the idea that God will give attention to them because of the number of their words.

ἐθνικοί· ethnikoi “pagans;”

And if he will not give ear to them, let it come to the hearing of the church: and if he will not give ear to the church, let him be to you as a Gentile and a tax-farmer.

ἐθνικὸς ethnikos “pagan”

For they went out for love of the Name, taking nothing from the Gentiles.

ἐθνικῶν. ethnikōn “Gentile [people].”