Where does “ภูต” come from?

ภูต (Thai) comes from Sanskrit भूत, from Proto-Indo-Iranian bʰuHtás, from Proto-Indo-European bʰuH-tó-s, from Proto-Indo-European bʰuH- — to become, grow, appear.

ภูต (Thai): ghost

Definitions

ghost

Ancestry of “ภูต”, step by step

Step	Language	Word	Meaning
1	Sanskrit	भूत	been
2	Proto-Indo-Iranian	bʰuHtás	become, been
3	Proto-Indo-European	bʰuH-tó-s	—
4	Proto-Indo-European	bʰuH-	to become, grow, appear

Every word from Proto-Indo-European bʰuH- →Every word from Proto-Indo-European bʰuH-tó-s →Every word from Proto-Indo-Iranian bʰuHtás →