Tolkien Gateway


thanc is a Noldorin word meaning "forked".[1]

Since thanc appears in the name Orthanc, Didier Willis has suggested that thanc (retaining the same meaning) would be valid Sindarin.[2]


The word derives from Old Noldorin sthanka, from root STAK.[1]



  1. 1.0 1.1 1.2 J.R.R. Tolkien, Christopher Tolkien (ed.), The Lost Road and Other Writings, "Part Three: The Etymologies", p. 388
  2. Didier Willis, Hiswelókë's Sindarin Dictionary at (accessed 19 June 2011)
  3. Compound Sindarin Names in Middle-earth at (accessed 27 June 2011)