Where does “பிரம்மபுத்திரா” come from?

பிரம்மபுத்திரா (Tamil) comes from Sanskrit ब्रह्मपुत्र, from Sanskrit पुत्र, from Proto-Indo-Iranian putrás, from Proto-Indo-European peh₂w- — few, little; smallness.

Ancestry of “பிரம்மபுத்திரா”, step by step

StepLanguageWordMeaning
1Sanskritब्रह्मपुत्रson of Brahma
2Sanskritपुत्रa son, child; a species of small venomous animal;...
3Proto-Indo-Iranianputrásboy; son
4Proto-Indo-Europeanpeh₂w-few, little; smallness
Every word from Proto-Indo-European peh₂w-Every word from Proto-Indo-Iranian putrásEvery word from Sanskrit पुत्र