Where does “слънчав” come from?

слънчав (Bulgarian) comes from Bulgarian слънце, from Old Church Slavonic слъньце, from Proto-Slavic sъlnьce, from Proto-Balto-Slavic *súlˀnis, from Proto-Indo-European sóh₂wl̥ — sun.

Ancestry of “слънчав”, step by step

StepLanguageWordMeaning
1Bulgarianслънцеsun; central star of a solar system
2Old Church Slavonicслъньцеsun
3Proto-Slavicsъlnьcesun
4Proto-Balto-Slavic*súlˀnissun
5Proto-Indo-Europeansóh₂wl̥sun
Every word from Proto-Indo-European sóh₂wl̥ →Every word from Proto-Balto-Slavic *súlˀnis →Every word from Proto-Slavic sъlnьce →