Where does “नव्वेवाँ” come from?

नव्वेवाँ (Hindi) comes from Hindi नव्वे, from Sanskrit नवति, from Proto-Indo-Aryan *Hnawatíṣ, from Proto-Indo-Iranian *Hnawatí, from Proto-Indo-European h₁néwn̥dḱomt, from Proto-Indo-European h₁néwn̥ — nine.

Ancestry of “नव्वेवाँ”, step by step

StepLanguageWordMeaning
1Hindiनव्वे—
2Sanskritनवतिninety
3Proto-Indo-Aryan*Hnawatíṣ—
4Proto-Indo-Iranian*Hnawatíninety
5Proto-Indo-Europeanh₁néwn̥dḱomtninety
6Proto-Indo-Europeanh₁néwn̥nine
Every word from Proto-Indo-European h₁néwn̥ →Every word from Proto-Indo-European h₁néwn̥dḱomt →Every word from Proto-Indo-Iranian *Hnawatí →