1) By almost a dozen times 2) By ten times as much 3) Containing ten or ten parts 4) Decemplex 5) Decuple 6) Denary 7) Exclusively Saxon word 8) Exclusively Anglo word 9) Like a 1000 percent profit 10) Like a 1000% profit 11) Multiple 12) Word of purely Anglo origin 13) Word with Anglo-Saxon origins Found on https://www.crosswordclues.com/clue/tenfold
Ten'fold` adjective & adverb In tens; consisting of ten in one; ten times repeated. « The grisly Terror . . . grew tenfold More dreadful and deform.» Milton. Found on http://www.encyclo.co.uk/webster/T/26