An Etymological Dictionary of the German Language/Annotated/acht

acht, numeral, ‘eight,’ from the equivalent Middle High German ahte, Old High German ahto, common to the Teutonic and also to the Aryan groups. Compare Gothic ahtau, Anglo-Saxon eahta, English eight, Dutch acht, Old Saxon ahto; further, Sanscrit ašṭáu, Greek ὀκτώ, Latin octo, Old Irish ocht, Lithuanian asztu̇nì, primary Aryan oktô, or rather oktôu, ‘eight.’ Respecting acht Tage see the historical note under Nacht.