Middle English Dictionary – University of Michigan -The world’s largest searchable database of Middle English lexicon and usage for the period 1100-1500.

Middle English Compendium – University of Michigan – Three major Middle English resources: a dictionary, a bibliography, and a collection of texts.

Medieval English Compendium Bibliography Search – University of Michigan – Bibliography results include only the manuscripts and editions used in the compilation of the Middle English Dictionary.

Dictionary of Old English – University of Toronto – The 2007 Release of the Dictionary of Old English: A to G online has been produced in part with the support of the Canada Foundation for Innovation through the TAPoR project, the Social Sciences and Humanities Research Council of Canada and the National Endowment for the Humanities, an independent federal agency.