Where does “tŕ̥nam” come from?

tŕ̥nam (Proto-Indo-Aryan) comes from Proto-Indo-Iranian tŕ̥nam, from Proto-Indo-European tr̥nós, from Proto-Indo-European (s)ter- — strong, firm, stiff, rigid; rigid, stiff; to...

Ancestry of “tŕ̥nam”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iraniantŕ̥namblade of grass; grass
2Proto-Indo-Europeantr̥nóssharp, stiff
3Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...
Every word from Proto-Indo-European (s)ter- →Every word from Proto-Indo-European tr̥nós →Every word from Proto-Indo-Iranian tŕ̥nam →