An Etymological Dictionary of the German Language/Annotated/dannen

by Friedrich Kluge

dannen, adverb, only preserved in the phrase von dannen, ‘thence, from thence’; Middle High German dannen, Old High German dannana, dannân, and danân, ‘inde, illinc’; Anglo-Saxon þanon, English thence. For Gothic *þanana the word þaþrô, formed from the same root, was used.