Where does “pyrocotton” come from?

pyrocotton (English) comes from English Cotton, from Middle English cotoun, from Anglo-Norman cotun, from Middle English coton, from Old French cotoun, from Italian cotone, from Arabic قُطُن, from Arabic قُطْن — cotton.

pyrocotton (English): cotton, a high explosive that is the main constituent of smokeless powder

Definitions

cotton, a high explosive that is the main constituent of smokeless powder

Ancestry of “pyrocotton”, step by step

pyrocotton traces back through two separate lines of ancestry.

via English Cotton

Step	Language	Word	Meaning
1	English	Cotton	The name of several settlements around the world
2	Middle English	cotoun	—
3	Anglo-Norman	cotun	—
4	Middle English	coton	cotton fiber of
5	Old French	cotoun	cotton; a piece of cotton
6	Italian	cotone	cotton; cotton wool
7	Arabic	قُطُن	—
8	Arabic	قُطْن	cotton

via English pyro

Step	Language	Word	Meaning
1	English	pyro	a pyromaniac; pyrocellulose; pyrotechnician
2	Ancient Greek	πῦρ	a fire; lightning; a fever
3	Proto-Indo-European	péh₂wr̥	bonfire; spelt

Every word from Arabic قُطْن →Every word from Arabic قُطُن →Every word from Italian cotone →