←
Proto-Germanic *dalą (inherited)
←
Old Swedish dal (inherited)
←
Proto-Indo-European *dʰol- (derived)
←
Proto-Indo-European *dʰel- (mention)
←
Old Norse dalr (inherited)
→
Old English dæl (cognate)
→
Old Church Slavonic долъ (cognate)
→
Alemannic German Tall (cognate)