Where does “pentapyrrolic” come from?

pentapyrrolic (English) comes from English pyrrolic, from English pyrrole, from German Pyrrol, from Ancient Greek πυρρός, from Ancient Greek πῦρ, from Proto-Indo-European péh₂wr̥ — bonfire; spelt.

pentapyrrolic (English): Composed of five pyrrole rings (rather than the usual four)

Definitions

  1. Composed of five pyrrole rings (rather than the usual four)

Ancestry of “pentapyrrolic”, step by step

pentapyrrolic traces back through two separate lines of ancestry.

via English pyrrolic

StepLanguageWordMeaning
1EnglishpyrrolicPertaining to, or having a structure based on, a...
2EnglishpyrroleAny of a class of aromatic heterocyclic compounds...
3GermanPyrrolpyrrole
4Ancient Greekπυρρόςflame-coloured, yellowish-red; red-haired,...
5Ancient Greekπῦρa fire; lightning; a fever
6Proto-Indo-Europeanpéh₂wr̥bonfire; spelt

via English penta

StepLanguageWordMeaning
1Englishpenta
Every word from Proto-Indo-European péh₂wr̥Every word from Ancient Greek πῦρEvery word from Ancient Greek πυρρός
pentapyrrolic — Etymology, Origin & Word History | Etymology Explorer