Where does “দেবনাগরী” come from?

দেবনাগরী (Bengali) comes from Sanskrit देवनागरी, from Sanskrit नगर, from Sanskrit गर, from Sanskrit गुरु, from Proto-Indo-Aryan gr̥Húṣ, from Proto-Indo-Iranian gr̥Húš, from Proto-Indo-European gʷréh₂us, from Proto-Indo-European -us — Forms adjectives from Caland system roots.

দেবনাগরী (Bengali): Devanagari

Definitions

Devanagari

Ancestry of “দেবনাগরী”, step by step

Step	Language	Word	Meaning
1	Sanskrit	देवनागरी	Devanagari
2	Sanskrit	नगर	town, city; urban
3	Sanskrit	गर	mountain, top
4	Sanskrit	गुरु	heavy; weighty
5	Proto-Indo-Aryan	gr̥Húṣ	—
6	Proto-Indo-Iranian	gr̥Húš	heavy
7	Proto-Indo-European	gʷréh₂us	heavy
8	Proto-Indo-European	-us	Forms adjectives from Caland system roots

Every word from Proto-Indo-European -us →Every word from Proto-Indo-European gʷréh₂us →Every word from Proto-Indo-Iranian gr̥Húš →