Where does “bruthcharraig” come from?
bruthcharraig (Irish) comes from Irish carraig, from Old Irish carrac, from Old Welsh carrecc, from Proto-Brythonic *karreg, from Proto-Celtic *karrikā, from Proto-Indo-European *kh₂er-.
bruthcharraig (Irish): igneous rock
Ancestry of “bruthcharraig”, step by step