eightfold

adj

1. (not-comparable)Eight times as much; multiplied by eight.
2. (not-comparable)Containing eight parts.

   “2003, Richard Morris, The Last Sorcerers, page 213, The scheme, which Gell-Mann called the eightfold way, grouped mesons and baryons into families.”

adv

1. (not-comparable)By a factor of eight.