Where does “*baþþjan” come from?
*baþþjan (Proto-Germanic) comes from Proto-Germanic *baþjaną, from Proto-Indo-European bʰeh₁- — to foment; warm; bathe.
*baþþjan (Proto-Germanic) comes from Proto-Germanic *baþjaną, from Proto-Indo-European bʰeh₁- — to foment; warm; bathe.