Where does “megarayleigh” come from?

megarayleigh (English) comes from English mega, from Ancient Greek μέγας, from Proto-Indo-European meǵh₂s — great.

megarayleigh (English): A unit of brightness equal to one million rayleighs

Definitions

  1. A unit of brightness equal to one million rayleighs

Ancestry of “megarayleigh”, step by step

megarayleigh traces back through two separate lines of ancestry.

via English mega

StepLanguageWordMeaning
1EnglishmegaVery large; great; excellent
2Ancient Greekμέγαςbig, large; great, mighty, loud; marvelous,...
3Proto-Indo-Europeanmeǵh₂sgreat

via English rayleigh

StepLanguageWordMeaning
1EnglishrayleighA unit of brightness equal to 10/4π quanta per...
Every word from Proto-Indo-European meǵh₂sEvery word from Ancient Greek μέγαςEvery word from English mega
megarayleigh — Etymology, Origin & Word History | Etymology Explorer