The term 'OLD EGYPTIAN KING' can be summarized by the crossword solution 'RAMSES, ' which is a six-letter word. Ramses was an ancient Egyptian pharaoh who ruled during the 19th dynasty of the New Kingdom period, from 1279 to 1213 BC. He is considered one of the most powerful and influential pharaohs in Egyptian history, and his reign was marked by numerous military campaigns and extensive building projects.