This examination of the Medulla Grammaticae reveals a synchronic representation of century English language, as it was locally spoken and written in Anglo-Norman England of the London area and its surroundings, in the years 1430-1480. Contrary to classical Latin-English dictionaries, this one reproduces the many free variations in spelling and lexical items, many of which reflect the regional aspect of the language. The author also included in the entries the syntactic and morpho-graphemic notes produced by the monks of the time.
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