aurora

“A luminous phenomenon that consists of streamers or arches of light appearing in the upper atmosphere of a planet’s magnetic polar regions and is caused by the emission of light from atoms excited by electrons accelerated along the planet’s magnetic field lines” - Merriam Webster Dictionary

I’m sure to someone with a different degree, this makes sense, but I interpret aurorato mean exclusively, “pretty northern lights.” 

The English comes from the Latin word Aurora,the name of the Roman goddess of dawn. She is called the daughter of Hyperion and Euryphaessa, who assisted in bringing the sun to shine in the mornings. 

The Proto-Indo-European root is au̯es-, meaning “to shine, gold, morning, etc.” Interestingly, this also birthed the Greek word Ἠώς Ēṓs,a parallel of the Latin word, and the Greek name for the same deity. From ἠώς, we have eastandEaster,both of which make sense. The dawn rises in the east, and the word Easter is a derivative of a Germanic goddess of the dawn.