Where does “vaya” come from?

vaya (Pali) comes from Sanskrit वयस्, from Proto-Indo-Iranian *wáyHas.

Ancestry of “vaya”, step by step

StepLanguageWordMeaning
1Sanskritवयस्age
2Proto-Indo-Iranian*wáyHas—

Words derived from “vaya”

Every word from Proto-Indo-Iranian *wáyHas →Every word from Sanskrit वयस् →
vaya — Etymology, Origin & Word History | Etymology Explorer