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Webster 1913 Edition

Adj.

Having the ratio of one to six;

as, a

sub

sextuple proportion

Bp. Wilkins.

Adj.

[L. sub and sextuplus.] Containing one part in six.

subsextuple ‎(not comparable)

Having the ratio of one to six.
- Bishop John Wilkins
  […] the whole would amount to 320000 pounds; half of which would be lightened by the help of one pulley, three quarters by two pullies, and so onward, according to this subduple, subquadruple, and subsextuple proportion.