Where does “сонца” come from?

сонца (Belarusian) comes from Russian со́лнце, from Old East Slavic сълньце, from Proto-Slavic sъlnьce, from Proto-Balto-Slavic *súlˀnis, from Proto-Indo-European sóh₂wl̥ — sun.

сонца (Belarusian): the sun

Definitions

the sun

Ancestry of “сонца”, step by step

Step	Language	Word	Meaning
1	Russian	со́лнце	—
2	Old East Slavic	сълньце	sun
3	Proto-Slavic	sъlnьce	sun
4	Proto-Balto-Slavic	*súlˀnis	sun
5	Proto-Indo-European	sóh₂wl̥	sun

Every word from Proto-Indo-European sóh₂wl̥ →Every word from Proto-Balto-Slavic *súlˀnis →Every word from Proto-Slavic sъlnьce →