Where does “blueshift” come from?

blueshift (English) comes from English Blue, from Middle English blēwe, from Anglo-Norman blew, from Middle French bleu, from Old French blöe, from Latvian blāvus, from Old High German blāo, from Proto-West Germanic blāu — yellow, blond, grey.

blueshift (English): A change in the wavelength of light, in which the...

Definitions

  1. A change in the wavelength of light, in which the...

Ancestry of “blueshift”, step by step

blueshift traces back through two separate lines of ancestry.

via English Blue

StepLanguageWordMeaning
1EnglishBlueA letterman at Oxford or Cambridge; A member of...
2Middle Englishblēwe
3Anglo-Normanblewblue
4Middle Frenchbleublue
5Old Frenchblöeblue
6Latvianblāvusaccusative plural masculine form of blāvs
7Old High Germanblāoblue, dark, grey; blue; yellow
8Proto-West Germanicblāublue
9Proto-Germanicblēwazblue; a dark bluish or grey colour, black
10Proto-Indo-Europeanbʰlēw-yellow, blond, grey

via English Shift

StepLanguageWordMeaning
1EnglishShiftA modifier key whose main function is shifting...
2Middle EnglishschiftenTo split, cut up, sunder; To share out,...
3Old Englishsċiftanto divide, separate into shares; appoint, ordain;...
4Proto-GermanicskiftijanąTo put in order; organise; arrange
5Proto-Germanicskipatjanąto organise, put in order
6Proto-Indo-Europeanskēyb-
7Proto-Indo-Europeansḱēy-to shine; to shimmer; shadow; luster, gloss,...
8Proto-Germanicskaidąseparation, distinction
9Proto-Indo-EuropeanskÁit-to cut, part, spearate, divide; to cut, part,...

Words derived from “blueshift

Every word from Proto-Indo-European bʰlēw-
blueshift — Etymology, Origin & Word History | Etymology Explorer