From The Collaborative International Dictionary of English v.0.48 :
Hellene \Hel"lene\, n. [Gr. ?.]
A native of either ancient or modern Greece; a Greek.
--Brewer.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
Hellene
n 1: a native or inhabitant of Greece [syn: Greek, Hellene]