sev·en·fold /-ˌfold/
  (a.)七倍的;由七部而成的
  Sev·en·fold, adv. Seven times as much or as often.
     Whosoever slayeth Cain, vengeance shall be taken on him sevenfold.   --Gen. iv. 15.
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  Sev·en·fold a. Repeated seven times; having seven thicknesses; increased to seven times the size or amount. “Sevenfold rage.”
  sevenfold
       adj : having seven units or components [syn: septuple]
       adv : seven times; "the population of this village increased
             sevenfold in the past 100 years"