←
Old English hwæt (cognate)
←
Proto-Germanic *hwat (inherited)
←
Old High German hwaz (cognate)
←
Proto-Indo-European *kʷod (derived)
←
Old Norse hvat (cognate)
←
Old Frisian hwet (cognate)
→
Old English hwæt (cognate)
→
Middle Low German wat (inherited)
→
Old Norse hvat (cognate)