This paper describes the release as Linguistic Linked Open Data of DynaMorphPro, a lexical resource recording loanwords, conversions and class-shifts from Latin to Old Italian. We show how existing vocabularies are reused and integrated to allow for a rich semantic representation of these data. Our main reference is the OntoLex-lemon model for lexical information, but classes and properties from many other ontologies are also reused to express other aspects. In particular, we identify the CIDOC Concept Reference Model as the ideal tool to convey chronological information on historical processes of lexical innovation and change, and describe how it can be integrated with OntoLex-lemon.