Hellenized rhymes with:
colonized, africanized, agonized, aluminized, americanized, antagonized, balkanized, canonized, carbonized, christianized, colonized, demonized, disorganized, galvanized, harmonized, homogenized, humanized, immunized, lionized, mechanized, nonunionized, organized, patronized, reorganized, revolutionized, scrutinized, synchronized, unionized, unorganized, urbanized
Hellenized sounds like:
halmstad, hollingshead, hollinshead, holmquest, holmquist