Where does “bluetongue” come from?

bluetongue (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.

bluetongue (English): A disease of ruminants, caused by Bluetongue...

Definitions

  1. A disease of ruminants, caused by Bluetongue...

Ancestry of “bluetongue”, step by step

bluetongue 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 tongue

StepLanguageWordMeaning
1EnglishtongueThe flexible muscular organ in the mouth that is...
2Middle Englishtungtongue; A tongue-shaped thing; language, speech,...
3Old Englishtung
4Proto-West Germanictungātongue; speech, language
5Proto-Germanictungǭtongue; speech, language
6Proto-Indo-Europeandn̥ǵʰwéh₂stongue
Every word from Proto-Indo-European bʰlēw-Every word from Proto-Germanic blēwazEvery word from Proto-West Germanic blāu
bluetongue — Etymology, Origin & Word History | Etymology Explorer