The Evolution of English Lexicography

The MS. of the Corpus Glossary dates to the early part of the eighth century
the Epinal and Erfurt-although the MS. copies that have come down to us are not older, or not so old-must from their nature go back as glossaries to a still earlier date, and the Leiden to an earlier still
so that we carry back these beginnings of lexicography in England to a time somewhere between 600 and 700 A.D., and probably to an age not long posterior to the introduction of Christianity in the south of England at the end of the sixth century. Many more vocabularies were compiled between these early dates and the eleventh century
and it is noteworthy that those ancient glossaries and vocabularies not only became fuller and more orderly as time advanced, but they also became more English. For, as I have already mentioned, the primary purpose of the glosses was to explain difficult Latin words
this was done at first, whenever possible, by easier Latin words
apparently, only when none such were known, was the explanation given in the vernacular, in Old English. In the Epinal Glossary the English words are thus relatively few. In the first page they number thirty out of 117, and in some pages they do not amount to half that number.