Greek (adjective)

1. Relating to Greece or its people, language, or culture.
2. Written in Greek letters or characters.
3. Relating to the ancient civilization of Greece.
4. Relating to the Greek Orthodox Church.
5. Relating to a system of fraternities and sororities in North American universities.

Origin:

Late 16th century: via latin from greek graikos, denoting the people of greece.

Examples:

1. She studied ancient Greek history.
2. The manuscript was written in Greek.
3. The Parthenon is a famous Greek temple.
4. The Greek Orthodox Church is the largest Christian church in Greece.
5. Many students join Greek organizations in college.