Where does “coreshine” come from?

coreshine (English) comes from English Core, from English -core, from English hardcore, from English hard, from Old French hardi, from Old French hardir, from Frankish hardijan, from Proto-Germanic hardijaną — to travel, tour.

coreshine (English): infrared light scattered by unusually large...

Definitions

  1. infrared light scattered by unusually large...

Ancestry of “coreshine”, step by step

coreshine traces back through two separate lines of ancestry.

via English Core

StepLanguageWordMeaning
1EnglishCoreThe birth name of Persephone/Proserpina, the queen of the Underworld/Hades, and goddess of the seasons and of vegetation. She is the daughter of Zeus and Demeter, and the wife of Hades
2English-coreApplied to various genres of music and...
3EnglishhardcoreHaving an extreme dedication to a certain...
4EnglishhardHaving a severe property; presenting difficulty;...
5Old Frenchhardihardy; tough; durable
6Old Frenchhardirto harden
7Frankishhardijanto harden, to make hard
8Proto-Germanichardijanąto make hard, strong; to harden
9Proto-Germanicharduzhard; brave
10Proto-Indo-Europeankert-times; to weave, twist together; time
11Proto-Turkic*keŕ-to travel, tour

via English shine

StepLanguageWordMeaning
1EnglishshineTo emit light; To reflect light; To distinguish...
2Middle EnglishshinenAlternative form of schinen
3Old Englishsċīnanto shine
4Proto-West Germanicskīnanto shine; to appear
5Proto-Germanicskīnanąto shine; to appear
6Proto-Indo-European(s)ḱeh₁y-to shine, shimmer
Every word from Proto-Turkic *keŕ-Every word from Proto-Indo-European kert-Every word from Proto-Germanic harduz