1. protection, support, or sponsorship; also spelled aegis
Usage: often used in the phrase 'under the egis of'; variant spelling of aegis
2. a shield or breastplate, especially one associated with a deity in classical mythology
Usage: archaic; chiefly historical or mythological

Examples

• The research project was conducted under the egis of the university.
• The new initiative operates under the egis of the government agency.
• She worked under the egis of a renowned mentor.
• The program received funding under the egis of the foundation.
• In classical mythology, Athena's egis was a symbol of divine protection.