The study deals with the Addenda to the Old Church Slavonic Dictionary (Lexicon linguae palaeoslovenicae V. - Addenda et corrigenda). The aim of the Addenda to the Old Church Slavonic Dictionary (i.e. Lexicon linguae palaeoslovenicae V. - Addenda et corrigenda, Pragae 2016) is the add addenda and corrections to the existing entries of the first volume of the Old Church Slavonic Dictionary and to introduce new entries, based on new excerption, that were not included in the first volume of the Old Church Slavonic Dictionary for various reasons (new discoveries of Old Church Slavonic manuscripts, imperfect excerption of the original sources, etc.).