Source : WordNet®

rootage
     n 1: fixedness by or as if by roots; "strengthened by rootage in
          the firm soil of faith"
     2: a developed system of roots [syn: {root system}]
     3: the place where something begins, where it springs into
        being; "the Italian beginning of the Renaissance";
        "Jupiter was the origin of the radiation"; "Pittsburgh is
        the source of the Ohio River"; "communism's Russian root"
        [syn: {beginning}, {origin}, {root}, {source}]