About baltic tu "thou"
Fragment of a discussion from User talk:Rua
What about this tree?
Indo-Iranian: *tuH
Indo-Aryan: Romani: tu Sanskrit: त्वम् (tvám) < *tuH-am Bengali: তুমি (tumi) Hindi: तुम (tum) Urdu: تم (tum) Punjabi: ਤੂੰ (tū̃)
Sanskrit: त्वम् (tvám) have descendants, but we see all descendants here and Romani "tu" too.
There is no consistency in list.