ae ‧ gis /ˈiːdʒəs, ˈiːdʒɪs/ BrE AmE noun formal
[ Date: 1600-1700 ; Language: Latin ; Origin: 'shield of Jupiter, made of goatskin' , from Greek aigis 'shield of Zeus' , perhaps from aix 'goat' ]
under the aegis of somebody/something with the protection or support of a person or organization:
a refugee camp operating under the aegis of the UN