Where does “purple sulfur bacterium” come from?

purple sulfur bacterium (English) comes from English purple, from Old English purpul, from Old English purpure, from Latin purpura, from Ancient Greek πορφύρα, from Ancient Greek πορφύρω, from Proto-Indo-European bʰrewh₁-, from Proto-Indo-European bʰer- — to bear, carry.

purple sulfur bacterium (English): Any gammaproteobacterium of the order Chromatiales

Definitions

  1. Any gammaproteobacterium of the order Chromatiales

Ancestry of “purple sulfur bacterium”, step by step

purple sulfur bacterium traces back through two separate lines of ancestry.

via English purple

StepLanguageWordMeaning
1EnglishpurpleA colour/color that is a dark blend of red and...
2Old Englishpurpulpurple
3Old Englishpurpurea purple garment or material
4Latinpurpurathe purple-fish, a species of shellfish or...
5Ancient Greekπορφύραpurple-fish; a purple dye obtained from it;...
6Ancient Greekπορφύρωto surge up; to redden
7Proto-Indo-Europeanbʰrewh₁-to boil; to brew
8Proto-Indo-Europeanbʰer-to bear, carry

via English sulfur bacterium

StepLanguageWordMeaning
1Englishsulfur bacteriumAny of several bacteria which oxidize inorganic sulfur compounds, especially those bacteria of the genus Thiobacillus
Every word from Proto-Indo-European bʰer-Every word from Proto-Indo-European bʰrewh₁-Every word from Ancient Greek πορφύρα