The Collaborative International Dictionary of English v.0.48:

Root \Root\ (r[=oo]t), v. i. [imp. & p. p. Rooted; p. pr. &
   vb. n. Rooting.]
   1. To fix the root; to enter the earth, as roots; to take
      root and begin to grow.
      [1913 Webster]

            In deep grounds the weeds root deeper. --Mortimer.
      [1913 Webster]

   2. To be firmly fixed; to be established.
      [1913 Webster]

            If any irregularity chanced to intervene and to
            cause misappehensions, he gave them not leave to
            root and fasten by concealment.       --Bp. Fell.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rooted \Root"ed\, a.
   Having taken root; firmly implanted; fixed in the heart. "A
   rooted sorrow." --Shak.
   [1913 Webster] -- Root"ed*ly, adv. -- Root"ed*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rooted
    adj 1: absolutely still; "frozen with horror"; "they stood
           rooted in astonishment" [syn: frozen(p), rooted(p),
           stock-still]

Moby Thesaurus II by Grady Ward, 1.0:

86 Moby Thesaurus words for "rooted":
   acknowledged, admitted, basic, chronic, confirmed, conventional,
   customary, deep-dyed, deep-engraven, deep-fixed, deep-grounded,
   deep-laid, deep-rooted, deep-seated, deep-set, deep-settled,
   dyed-in-the-wool, embedded, embossed, engrafted, engraved,
   entrenched, essential, established, etched, fast, firm,
   firmly established, fixed, folk, fundamental, graven, hallowed,
   handed down, heroic, hoary, immemorial, implanted, impressed,
   imprinted, inbred, incorrigible, inculcated, indelibly impressed,
   infixed, ingrained, ingrown, inherent, instilled, intrinsic,
   inveterate, inwrought, irreversible, legendary, long-established,
   long-standing, mythological, of long standing, of the folk,
   old-line, on a rock, on bedrock, oral, prescriptive, radical,
   received, recognized, set, settled, settled in habit, stabilized,
   thorough, time-honored, traditional, tried and true, true-blue,
   understood, unwritten, venerable, vested, well-established,
   well-founded, well-grounded, well-set, well-settled, worshipful