Use of Linguistic Technologies for Analysing the Evolution of Sufixes -COM and -VEL in Medieval Galician-Portuguese from Historical Corpora

The work presented in this paper has two objetives. On the one hand, it describes how to adapt two natural language processing tools to medieval Galician-Portuguese, namely a morphosyntactic analyzer and a medieval language recognizer, and on the other hand, it verifies linguistic hypotheses about the evolution of medieval suffixes by using these tools by using historical corpora. Although the performance of the tools is inferior to those used for more standardized modern varieties with less formal variability, we show that it is possible to use them with great reliability for quantitative corpus-based studies. The corpus-based linguistic study allows us to verify that, on the basis of their frequency distribution, the presence of the suffixes - CION and -BLE in medieval Galician texts is probably influenced by medieval Castilian