Where does “नया” come from?

नया (Bhojpuri) comes from Magadhi Prakrit 𑀡𑀯𑀺𑀅, from Sanskrit नव्य, from Proto-Indo-Iranian náwyas, from Proto-Indo-European néwyos, from Proto-Indo-European néwos, from Proto-Indo-European new- — new; to nod, assent to.

नया (Bhojpuri): new

Definitions

Ancestry of “नया”, step by step

Step	Language	Word	Meaning
1	Magadhi Prakrit	𑀡𑀯𑀺𑀅	—
2	Sanskrit	नव्य	new
3	Proto-Indo-Iranian	náwyas	—
4	Proto-Indo-European	néwyos	Alternative form of *néwos; new
5	Proto-Indo-European	néwos	new
6	Proto-Indo-European	new-	new; to nod, assent to

Every word from Proto-Indo-European new- →Every word from Proto-Indo-European néwos →Every word from Proto-Indo-European néwyos →