Where does “दिं” come from?

दिं (Newari) comes from Sanskrit दिन, from Proto-Indo-Aryan dinám, from Indo-Iranian *dinám, from Proto-Indo-European dyew- — to be bright; sky, heaven.

Ancestry of “दिं”, step by step

StepLanguageWordMeaning
1Sanskritदिनday; cut, divided, mowed
2Proto-Indo-Aryandinámday
3Indo-Iranian*dinám—
4Proto-Indo-Europeandyew-to be bright; sky, heaven
Every word from Proto-Indo-European dyew- →Every word from Indo-Iranian *dinám →Every word from Proto-Indo-Aryan dinám →