Where does “загробный” come from?
загробный (Russian) comes from Russian гроб, from Proto-Slavic grǫbъ, from Proto-Slavic grěti, from Proto-Indo-European gʷʰer-, from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr.
загробный (Russian): afterlife
Ancestry of “загробный”, step by step