In this paper, we propose a model to include a derivational lexicon for Latin (Word Formation Latin) within the LiLa Knowledge Base of interlinked linguistic resources for Latin. After a brief introduction on the architecture of LiLa, we discuss the differences between the flat organization of derivational information in LiLa’s Lemma Bank and the hierarchical structure ofWord Formation Latin, showing that the latter contains potentially useful information that is not already available in the former. We describe the modelling of such information in LiLa, exemplifying how different word formation processes are treated. We conclude the paper by showing the complementarity of the two approaches, and outlining the advantages offered by their interconnection.