Where does “Iseldiraidd” come from?
Iseldiraidd (Welsh) comes from Welsh Iseldiroedd, from Welsh iseldir, from Welsh isel, from Middle Welsh isel, from Proto-Celtic *ɸīsselos, from Proto-Celtic ɸīssu, from Proto-Indo-European pedsú, from Proto-Indo-European pṓds — to walk, to step; to stumble, to fall.
Iseldiraidd (Welsh): Dutch
Ancestry of “Iseldiraidd”, step by step