Where does “pješčenjak” come from?
pješčenjak (Serbo-Croatian) comes from Serbo-Croatian pijésak, from Proto-Slavic pěsъkъ, from Proto-Indo-European pē(n)s-u-ko-.
pješčenjak (Serbo-Croatian): sand rock, sandstone
Ancestry of “pješčenjak”, step by step