Where does “pyrocollodion” come from?

pyrocollodion (English) comes from English collodion, from English collodium, from Ancient Greek κολλώδης, from Ancient Greek κόλλα, from Proto-Indo-European ḱol-, from Proto-Indo-European ḱel- — to cover; to incline.

pyrocollodion (English): A smokeless powder, a variant of nitrocellulose

Definitions

  1. A smokeless powder, a variant of nitrocellulose

Ancestry of “pyrocollodion”, step by step

pyrocollodion traces back through two separate lines of ancestry.

via English collodion

StepLanguageWordMeaning
1EnglishcollodionA syrupy solution of pyroxylin in alcohol and...
2EnglishcollodiumAlternative form of collodion
3Ancient Greekκολλώδης
4Ancient Greekκόλλαglue; flour paste
5Proto-Indo-Europeanḱol-thorn, thorny plant
6Proto-Indo-Europeanḱel-to cover; to incline

via English pyro

StepLanguageWordMeaning
1Englishpyroa pyromaniac; pyrocellulose; pyrotechnician
2Ancient Greekπῦρa fire; lightning; a fever
3Proto-Indo-Europeanpéh₂wr̥bonfire; spelt
Every word from Proto-Indo-European ḱel-Every word from Proto-Indo-European ḱol-Every word from Ancient Greek κόλλα