Where does “lom” come from?

lom (Romansch) comes from Latin pulmo, from Ancient Greek πνεύμων, from Ancient Greek πλεύμων, from Proto-Indo-European pléwmō, from Proto-Indo-European plew- — to fly, flow, run.

lom (Romansch): lung

Definitions

lung

Ancestry of “lom”, step by step

Step	Language	Word	Meaning
1	Latin	pulmo	A lung; A lunglike marine animal; a sea-lung,...
2	Ancient Greek	πνεύμων	lung; kind of a mollusk
3	Ancient Greek	πλεύμων	lung
4	Proto-Indo-European	pléwmō	lung, floater
5	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 →