egis vs aegis

egis and aegis both are nouns.

Word	Noun	Adjective	Verb	Adverb
egis	Yes	No	No	No
aegis	Yes	No	No	No

As nouns, egis and aegis are synonyms defined as:

egis and aegis: armor plate that protects the chest; the front part of a cuirass

Other synonyms of egis include breastplate.

egis (noun)	aegis (noun)
armor plate that protects the chest; the front part of a cuirass	kindly endorsement and guidance
	armor plate that protects the chest; the front part of a cuirass