Where does “Aeneid” come from?

Aeneid derives from Latin Aeneis, from Latin Aeneas, through Latin nominative -us and accusative -a endings, from Proto-Italic -os, ultimately from Proto-Indo-European -ós.

Aeneid (English): A classic epic poem, written in Latin by Virgil in the 1st century (between 29 and 19), that tells the legendary story of Aeneas fleeing Troy and settling in Italy as ancestor of the Romans

Definitions

A classic epic poem, written in Latin by Virgil in the 1st century (between 29 and 19), that tells the legendary story of Aeneas fleeing Troy and settling in Italy as ancestor of the Romans

Ancestry of “Aeneid”, step by step

Step	Language	Word	Meaning
1	Latin	Aeneis	—
2	Latin	Aenēas	—
3	Latin	-is	suffixed to the root of nouns in composition,...
4	Latin	-a	suffixed to the roots of verbs, forms agent...
5	Proto-Italic	-ā	Forms masculine agent nouns from prefixed or compounded bases
6	Proto-Indo-European	-éh₂	—

Every word from Proto-Indo-European -éh₂ →Every word from Latin -is →Every word from Latin -a →