←
Proto-Germanic *kalwaz (inherited)
←
Proto-Germanic *kalbaz (inherited)
←
Proto-West Germanic *kalu (inherited)
←
Proto-West Germanic *kalb (inherited)
←
Old Frisian kale (inherited)
←
Old Frisian *kāl (inherited)
←
Old Frisian *kalf (mention)
→
North Frisian kuulew (mention)
→
North Frisian kualew (mention)
→
Luxembourgish Kallef (cognate)