ETYM AS. eahta; akin to OS. ahto, OFries. achta, Dutch and German acht, Old High Germ. ahto, Icel. âtta, Swed. atta, Dan. otte, Goth. ahtau, Lith. asztuni, Irish and Gael. ochd, W. wyth, Armor. eich, eiz, Latin octo, Greek okto, Skr. ashtan. Related to Octave.
Being one more than seven; SYN. 8, viii.