Where does “родни́к” come from?

родни́к (Russian) comes from Russian род, from Old East Slavic родъ, from Proto-Slavic rǫdъ, from Proto-Balto-Slavic radás, from Proto-Indo-European wréh₂ds — root.

родни́к (Russian): spring (water source)

Definitions

spring (water source)

Ancestry of “родни́к”, step by step

Step	Language	Word	Meaning
1	Russian	род	generation, birth, origin, stock, family, race;...
2	Old East Slavic	родъ	—
3	Proto-Slavic	rǫdъ	thorny, prickly; curly, locky
4	Proto-Balto-Slavic	radás	birth, genus
5	Proto-Indo-European	wréh₂ds	root

Words derived from “родни́к”

родничок

Every word from Proto-Indo-European wréh₂ds →Every word from Proto-Balto-Slavic radás →Every word from Proto-Slavic rǫdъ →