Where does “انګلستان” come from?

انګلستان (Pashto) comes from Persian انگلستان, from Persian ـستان, from Middle Persian -stʾn', from Proto-Indo-Iranian stáHnam, from Proto-Indo-European stéh₂-no-m, from Proto-Indo-European steh₂- — to stand.

Ancestry of “انګلستان”, step by step

Step	Language	Word	Meaning
1	Persian	انگلستان	Britain
2	Persian	ـستان	-istan, -estan, -stan
3	Middle Persian	-stʾn'	makes nouns of places; of indeterminate function
4	Proto-Indo-Iranian	stáHnam	the act of standing; position, location, place
5	Proto-Indo-European	stéh₂-no-m	—
6	Proto-Indo-European	steh₂-	to stand

Every word from Proto-Indo-European steh₂- →Every word from Proto-Indo-European stéh₂-no-m →Every word from Middle Persian -stʾn' →