Proto-Norse ᚦᛖᚹᚨᛉ

← Proto-Germanic *þewaz (inherited)

← Proto-Germanic (mention)

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

→ Proto-Norse ᛟᚹᛚᚦᚢᚦᛖᚹᚨᛉ (compound)

→ Proto-Norse ᚲᛖᛚᛒᚨᚦᛖᚹᚨᛊ (compound)

→ Old Norse -þér (inherited)