Where does “stūn” come from?

stūn (Pahlavi) comes from Old Persian 𐎿𐎬𐎢𐎴𐎠, from Proto-Iranian stuHnáH, from Proto-Indo-Iranian stʰuHnáH, from Proto-Indo-European sth₂-uh₂-néh₂, from Proto-Indo-European sth₂-wéh₂, from Proto-Indo-European steh₂- — to stand.

Ancestry of “stūn”, step by step

Step	Language	Word	Meaning
1	Old Persian	𐎿𐎬𐎢𐎴𐎠	column, pillar
2	Proto-Iranian	stuHnáH	pillar
3	Proto-Indo-Iranian	stʰuHnáH	pillar
4	Proto-Indo-European	sth₂-uh₂-néh₂	—
5	Proto-Indo-European	sth₂-wéh₂	standing, errect
6	Proto-Indo-European	steh₂-	to stand

Every word from Proto-Indo-European steh₂- →

stūn — Etymology, Origin & Word History | Etymology Explorer