Where does “soler” come from?

soler (Old English) comes from Latin solarium, from Latin sōl, from Proto-Indo-European sóh₂wl̥ — sun.

Ancestry of “soler”, step by step

StepLanguageWordMeaning
1Latinsolariuma sundial; a terrace exposed to the sun
2Latinsōl—
3Proto-Indo-Europeansóh₂wl̥sun
Every word from Proto-Indo-European sóh₂wl̥ →Every word from Latin sōl →Every word from Latin solarium →