Where does “церковнославянский” come from?

церковнославянский (Russian) comes from Russian славя́нский, from Proto-Slavic slověnьskъ, from Proto-Slavic slověninъ, from Proto-Slavic slovo, from Proto-Balto-Slavic ślawas, from Proto-Indo-European ḱléwos, from Proto-Indo-European ḱlew-, from Proto-Indo-European ḱel- — to cover; to incline.

церковнославянский (Russian): Church Slavonic

Definitions

  1. Church Slavonic

Ancestry of “церковнославянский”, step by step

церковнославянский traces back through two separate lines of ancestry.

via Russian славя́нский

StepLanguageWordMeaning
1Russianславя́нскийSlav, Slavic
2Proto-SlavicslověnьskъSlavic
3Proto-SlavicslověninъSlav
4Proto-Slavicslovoword
5Proto-Balto-Slavicślawas
6Proto-Indo-Europeanḱléwosfame
7Proto-Indo-Europeanḱlew-to hear
8Proto-Indo-Europeanḱel-to cover; to incline

via Russian церко́вный

StepLanguageWordMeaning
1Russianцерко́вныйchurch
2Old East Slavicцерко́вный
Every word from Proto-Indo-European ḱel-Every word from Proto-Indo-European ḱlew-Every word from Proto-Indo-European ḱléwos