Old Norse Mjǫllnir

← Welsh mellt (cognate)

← Proto-Germanic *meldunjaz (inherited)

← Proto-Norse *ᛗᛖᛚᚢᚾᛁᚨᛉ (inherited)

← Proto-Indo-European *meldʰ- (derived)

← Latvian milna (cognate)

← Old Norse myln (cognate)

← Old Norse mjǫll (mention)

← Russian мо́лния (cognate)

→ English Mjollnir (borrowed)

→ Welsh mellt (cognate)

→ German Mjölnir (borrowed)

→ Icelandic Mjölnir (inherited)

→ Japanese ミョルニル (learned borrowing)

→ Korean 묠니르 (mention)

→ Russian молния (cognate)

→ Swedish Mjölner (inherited)