suboctuple

Containing one part of eight; in the ratio of one to eight.

Adjective

  1. Containing one part of eight; in the ratio of one to eight.
    • As one of these under pulleys abates half of that heaviness of the weight, and causes the power to be in a subduple proportion; so two of them abate half of that which remains, and cause a subquadruple proportion, three...

Origin

From sub- + octuple.