←
Proto-Germanic *hulaz (inherited)
←
Proto-Germanic *hulą (inherited)
←
Proto-Indo-European *kuH- (inherited)
←
Proto-Indo-European *kewH- (mention)
←
Old Norse holr (inherited)
←
Old Norse hol (inherited)
←
Old Norse heyrða (inherited)
→
Alemannic German hol (cognate)