Where does “julafton” come from?

julafton (Swedish) comes from Swedish jul, from Swedish juli, from Latin Iūlius, from Latin iuppiter, from Proto-Italic djous patēr, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws — to be bright; sky, heaven.

julafton (Swedish): Christmas Eve

Definitions

  1. Christmas Eve

Ancestry of “julafton”, step by step

julafton traces back through two separate lines of ancestry.

via Swedish jul

StepLanguageWordMeaning
1SwedishjulChristmas; July; Abbreviation of juli
2SwedishjuliJuly
3LatinIūliusOf the gens Julia, a patrician Roman family
4LatiniuppiterJupiter god of the sky and ruler of the Roman pantheon
5Proto-Italicdjous patērJupiter
6Proto-Italic*djous
7Proto-Indo-Europeandyḗwssky, heaven; sky god
8Proto-Indo-Europeandyéwssky, heaven
9Proto-Indo-Europeandyew-to be bright; sky, heaven

via Swedish afton

StepLanguageWordMeaning
1Swedishaftonafternoon, evening; eve
2Old Swedishaptanafternoon, evening
3Old Norseaptannan evening
4Proto-Germanicēbanþsevening
5Proto-Indo-Europeanh₁epion, at, near
6Proto-Indo-Europeanh₁eps
Every word from Proto-Indo-European dyew-