Omega would be a Greek word that fits this description.
Gonad - from the Greek word "gone" which means generation or seed.
Lambda.
'Khilioi (χίλιοι)' is Ancient Greek for 'thousand'
nu
Jason and the argonauts
In Greek mythology Chaos was the Greek god who created earth. His name begins with the letter C.
Acropolis is a famous structure in Greece. It begins with the letter A.
The most common word would be Upsilon, although there are others.
Patras is a city in Greece. It begins with P.
Hecate
"philía" is a greek word meaning "Love"