sixfold

from WordNet (r) 3.0 (2006)

sixfold
    adv 1: by a factor of six; "the population of this town
           increased sixfold when gold was found in the surrounding
           hills" [syn: {sixfold}, {six times}]
    adj 1: having six units or components [syn: {sextuple},
           {sixfold}, {six-fold}]

from The Collaborative International Dictionary of English v.0.48

Sixfold \Six"fold`\, a. [AS. sixfealand.]
   Six times repeated; six times as much or as many.
   [1913 Webster]