←
Old English dæg (cognate)
←
Proto-Germanic *dagaz (inherited)
←
Old High German tac (cognate)
←
Proto-Indo-European *dʰegʷʰ- (derived)
←
Old Norse dagr (cognate)
→
Old English dæg (cognate)
→
Old High German tag (cognate)
→
Alemannic German Tag (cognate)
→
Old Norse dagr (cognate)