Lexicography /(lĕks`ĭ*kŏg"rȧ*fy̆)/

Lex·i·cog·ra·phy

Lexicography

n.
  1. The art, process, or occupation of making a lexicon or dictionary; the principles which are applied in making dictionaries; as, with so many words lexicography can be interesting in parts but at length is rather tedious labor.