Old Norse duga

← Proto-Germanic *duganą (inherited)

← Proto-Indo-European *dʰedʰówgʰe (inherited)

← Proto-Indo-European *dʰewgʰ- (mention)

→ Danish du (inherited)

→ German taugen (cognate)

→ Faroese duga (inherited)

→ Westrobothnian dåga (inherited)

→ Old Swedish dugha (inherited)

→ Old High German tugan (cognate)

→ Norwegian Bokmål due (derived)

→ Norwegian Bokmål duge (inherited)

→ Norwegian Nynorsk duga (inherited)

→ Old Norse dugnaðr (suffix)

→ Old Norse atdugnaðr (suffix)

→ Swedish duga (inherited)