Aegis

"Ægis" has entered modern English to mean a shield, protection, or sponsorship, originally from the name of the mythological protective shield of Zeus. The name has been extended to many other entities, such as the Aegis combat system used by the U.S. Navy, Aegis Clothing and Aegis Law Firm in southern California, as well as Aegis School of Business in Mumbai, India; and the concept of a protective shield is found in other mythologies, while its form varies across sources.

The concept of doing something "under someone's ægis" means doing something under protection of a powerful, knowledgeable, or benevolent source. The word ægis is identified with protection by a strong force with its roots in Classical mythology, specifically Greek myth adopted by the Romans; there are parallels in Norse mythology, and in Egyptian, where the Greek word aegis is applied by extension.