The Collaborative International Dictionary of English v.0.48:

Sevenfold \Sev"en*fold`\, a.
   Repeated seven times; having seven thicknesses; increased to
   seven times the size or amount. "Sevenfold rage." --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sevenfold \Sev"en*fold`\, adv.
   Seven times as much or as often.
   [1913 Webster]

         Whosoever slayeth Cain, vengeance shall be taken on him
         sevenfold.                               --Gen. iv. 15.
   [1913 Webster]

WordNet (r) 3.0 (2006):

seven-fold
    adj 1: having seven units or components [syn: septuple,
           sevenfold, seven-fold]