Where does “రక్తనిధి” come from?

రక్తనిధి (Telugu) comes from Sanskrit रक्त, from Sanskrit रञ्ज्, from Proto-Indo-European *(s)reg-.

రక్తనిధి (Telugu): blood bank: a place where human blood and its...

Definitions

రక్తనిధి traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Sanskrit	रक्त	red; safflower L; Barringtonia acutangula L
2	Sanskrit	रञ्ज्	to redden; to dye or color
3	Proto-Indo-European	*(s)reg-	—

Step	Language	Word	Meaning
1	Sanskrit	निधि	setting down or serving up; a place for deposits...