Where does “երեսնամեան” come from?

երեսնամեան (Old Armenian) comes from Old Armenian երեսուն, from Proto-Indo-European trīḱomt, from Proto-Indo-European tridḱómt, from Proto-Indo-European tri-, from Proto-Indo-European tréyes — three.

երեսնամեան (Old Armenian): of thirty years; thirty years old

Definitions

of thirty years; thirty years old

Ancestry of “երեսնամեան”, step by step

երեսնամեան traces back through two separate lines of ancestry.

via Old Armenian երեսուն

Step	Language	Word	Meaning
1	Old Armenian	երեսուն	thirty
2	Proto-Indo-European	trīḱomt	—
3	Proto-Indo-European	tridḱómt	thirty
4	Proto-Indo-European	tri-	three, threefold
5	Proto-Indo-European	tréyes	three

via Old Armenian ամ

Step	Language	Word	Meaning
1	Old Armenian	ամ	year; age
2	Proto-Indo-European	s(e)meh₂-	—

Words derived from “երեսնամեան”

երեսնամյան

Every word from Proto-Indo-European tréyes →Every word from Proto-Indo-European tri- →Every word from Proto-Indo-European tridḱómt →