hellenian

As an adjective hellenian

is hellenic.

As a noun null is

zero, nil; the cardinal number before einn.

As adjectives the difference between hellenian and undefined

is that hellenian is hellenic while undefined is lacking a definition or value.

As an adjective hellenian is

hellenic.

As a noun terms

is .

As an adjective hellenian is

hellenic.

As adjectives the difference between hellenic and hellenian

is that hellenic is of or relating to the ancient Greek culture and civilization before the Hellenistic period while Hellenian is hellenic.

As a proper noun Hellenic

is the Greek language and its dialects from the earliest records (Linear B inscriptions, about 1600-1300 (BCE)) to the present Modern Greek.