Where does “solar” come from?

solar (Middle English) comes from Latin sōlāris, from Latin -āris, from Latin -ālis, from Proto-Italic -ālis — forms relational adjectives.

Ancestry of “solar”, step by step

solar traces back through two separate lines of ancestry.

via Latin sōlāris

StepLanguageWordMeaning
1LatinsōlārisOf or pertaining to the sun, solar
2Latin-ārisfirst conjugation
3Latin-ālis
4Proto-Italic-ālisforms relational adjectives

via Old English solor

StepLanguageWordMeaning
1Old EnglishsolorAlternative form of salor

Words derived from “solar

Every word from Proto-Italic -ālisEvery word from Latin -ālisEvery word from Latin -āris