In the present paper, the lexical database DeriNet is introduced which includes more than 969 thousand Czech word interconnected with 718 thousand links corresponding to derivational relations (relations between a base word and a word derived from it). Derivational relations were identified by semi-automatic procedures and manual annotation.
As the DeriNet network is fully compatible with a big inflectional dictionary of Czech (MorfFlex CZ), it can be used as a resource for an integrating approach to derivational and inflectional morphology of Czech both in linguistic research and in natural language processing.