Where does “bluestreak” come from?

bluestreak (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.

bluestreak (English): Any of various species of damselfly of the genus Lestoidea (not to be confused with superfamily Lestoidea), endemic to Australia

Definitions

  1. Any of various species of damselfly of the genus Lestoidea (not to be confused with superfamily Lestoidea), endemic to Australia

Ancestry of “bluestreak”, step by step

bluestreak 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 streak

StepLanguageWordMeaning
1EnglishstreakAn irregular line left from smearing or motion; A...
2Middle Englishstreke
3Old Englishstrica
4Proto-Germanicstrikizline
5Proto-Indo-Europeanstreyg-to strike; to shear
6Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...
Every word from Proto-Indo-European bʰlēw-