Where does “pyopneumothorax” come from?

pyopneumothorax (English) comes from English pneumothorax, from English pneumo-, from Ancient Greek πνεύμων, from Ancient Greek πλεύμων, from Proto-Indo-European pléwmō, from Proto-Indo-European plew- — to fly, flow, run.

pyopneumothorax (English): The accumulation of air and pus in the pleural...

Definitions

The accumulation of air and pus in the pleural...

Ancestry of “pyopneumothorax”, step by step

Step	Language	Word	Meaning
1	English	pneumothorax	Presence of air inside the pleural cavity,...
2	English	pneumo-	Relating to the lungs
3	Ancient Greek	πνεύμων	lung; kind of a mollusk
4	Ancient Greek	πλεύμων	lung
5	Proto-Indo-European	pléwmō	lung, floater
6	Proto-Indo-European	plew-	to fly, flow, run

Every word from Proto-Indo-European plew- →Every word from Proto-Indo-European pléwmō →Every word from Ancient Greek πλεύμων →