German nüchtern

← Danish nøgtern (cognate)

← English nocturnal (cognate)

← Middle High German nüehtern (inherited)

← Old High German nuohtarn (inherited)

← Old High German nuohturn (mention)

← Hunsrik nichter (cognate)

← Latin nocturnus (derived)

→ Danish nøgtern (borrowed)

→ German Nüchternheit (affix)

→ Norwegian Nynorsk nøktern (derived)