Where does “երեսնամյան” come from?

երեսնամյան (Armenian) comes from Old Armenian երեսնամեան, 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.

երեսնամյան (Armenian): Alternative form of երեսնամյա

Definitions

Alternative form of երեսնամյա

Ancestry of “երեսնամյան”, step by step

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

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