FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

ethnos ἔθνος — eth'-nos — probably from 1486; a race (as of the same habit), i.e. a tribe; specially, a foreign (non-Jewish) one (usually, by implication, pagan):--Gentile, heathen, nation, people.

see GREEK for 1486