Where does “சித்தர்” come from?

சித்தர் (Tamil) comes from Sanskrit सिद्ध, from Sanskrit -त, from Proto-Indo-Iranian -tás, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

சித்தர் (Tamil): supernals inhabiting the intermediate region between Earth and the Sun

Definitions

supernals inhabiting the intermediate region between Earth and the Sun

Ancestry of “சித்தர்”, step by step

Step	Language	Word	Meaning
1	Sanskrit	सिद्ध	proven
2	Sanskrit	-त	-ed
3	Proto-Indo-Iranian	-tás	Creates verbal adjectives from verb stems
4	Proto-Indo-European	-tós	Creates verbal adjectives from verb stems

Every word from Proto-Indo-European -tós →Every word from Sanskrit -त →Every word from Sanskrit सिद्ध →