Oxford English Dictionary (OED) Key site [UCSD Only] The accepted authority on the evolution of the English language over the last millennium. A guide to the meaning, history, and pronunciation of over half a million words, both present and past. [Full Description] http://www.oed.com/
Middle English Compendium This site offers access to & interconnectivity between 3 Middle English resources: a digital version of the M.E. Dictionary, a HyperBibliography of M.E. prose & verse, based on the MED bibliographies, and a Corpus of M.E. prose & verse. [Full Description] http://ets.umdl.umich.edu/m/mec/