Greek means belonging to or related to Greece or its people, language or culture.
Greek usage note
The noun Greek in its archaic meaning of “cheat” is usually taken as offensive to or by Greeks.
1a : a native or inhabitant of ancient or modern Greece. b : a person of Greek descent. 2a : The language used by the Greeks from prehistory to the present day, which is a branch of Indo-European – see Table of Indo-European languages.
Being Greek is far from being just one thing. It means you learn to adapt, overcome, fight and survive no matter the context.
The name ‘Greeks’ was given to the Greek people later by the Romans. They lived on mainland Greece and the Greek islands, but also in colonies scattered across the Mediterranean.
Instead, the Greeks refer to themselves as “Έλληνες” – Hellenes. The word “Greek” comes from the Latin “Graeci” and, through Roman influence, has become the common root of the word for the Greek people and culture in most languages. However, in English, both “Greek” and “Hellenic” are used.
Greek does not come from Latin. A form of Greek or Proto-Greek was spoken in the Balkans as early as 5,000 years ago. The oldest ancestor of the Latin language, which was an Italic language, dates back about 3,000 years. In other words, Greek predates Latin, so Greek can’t possibly have come from Latin.