1) Go from 10 to 70 2) Make two into fourteen 3) Multiple 4) Sevenfold 5) Times 7 1) Multiple 2) Sevenfold 
• (v. t.) To multiply by seven; to make sevenfold. • (a.) Seven times as much; multiplied by seven; sevenfold.
Sep'tu·ple adjective [ Late Latin septuplus ; confer Greek ...............:cf. French septuple . Confer Double , Quadruple .] Seven times as much; multiplied by seven; sevenfold. Sep'tu·ple transitive verb [ imperfect & past participle Septupled ; present participle & verbal noun Septupling .] To multiply by seven; to make sevenfold. Sir J. Herschel. 
[adj] - having seven units or components
sevenfold adjective having seven units or components