Where does “словарный” come from?

словарный (Russian) comes from Russian слова́рь, from Russian сло́во, from Old East Slavic слово, from Proto-Slavic slȍvo, from Proto-Indo-European ḱléwos, from Proto-Indo-European ḱlew-, from Proto-Indo-European ḱel- — to cover; to incline.

словарный (Russian): dictionary