A concordance of the early Italian poetic language is being compiled at the University of Florence, based on the need to recognize the special nature of the language in earlier times. The corpus consists of some forty-five manuscripts, that is, all that remains of book production from the origins to the end of the thirteenth century. Once the work of entering the single word-tokens is done, a complete concordance results, with accompanying grammatical connotations, in which not only are Tuscan and dialectal words grouped under separate standard headwords, but also homographs are clearly distinguished.