An Etymological Dictionary of the German Language/außen

by Friedrich Kluge

außen, adv., ‘outside, out of doors, without,’ from MidHG. ûȥen, OHG. ûȥana, ûȥân, adv., prep., ‘out of doors, outside, out, without’; corresponding to AS. ûton, adv., ‘from without,’ Goth. ûtana, adv., prep., ‘from without, outside, out’; from OTeut. ût. See aus.