The term 'OLD GREEK GARMENT' can be summarized as a TUNIC, which is a five-letter word. A TUNIC is a type of garment that was worn by both men and women in Ancient Greece. It was typically made of wool or linen and was usually knee-length. It was often decorated with embroidery and could be worn with a belt or sash. The TUNIC was an important part of the traditional Greek wardrobe and was used for both formal and informal occasions.