Where does “నీరుకొండ” come from?

నీరుకొండ (Telugu) comes from Telugu నీరు, from Proto-Dravidian nīr — you; water.

Ancestry of “నీరుకొండ”, step by step

Step	Language	Word	Meaning
1	Telugu	నీరు	water, as in the substance; fluid; slight
2	Proto-Dravidian	nīr	you; water