The term 'Egyptian Symbols of Royalty' refers to the use of symbols to denote power and authority in Ancient Egypt. The four-letter solution for this term is ASPS, which stands for Ankh, Scarab, Pharaoh, and Scepter. The Ankh was a symbol of life and immortality, the Scarab represented rebirth and transformation, the Pharaoh was a symbol of divine kingship, and the Scepter was a symbol of power and authority. Together, these symbols were used to represent the power and authority of the Pharaohs in Ancient Egypt.