Where does “parpaglione” come from?

parpaglione (Old Italian) comes from Latin papilio, from Proto-Indo-European pal- — to fly; to shake, swing; to feel, touch, shake.

Ancestry of “parpaglione”, step by step

Step	Language	Word	Meaning
1	Latin	papilio	butterfly, moth; Soul of a dead person; tent
2	Proto-Indo-European	pal-	to fly; to shake, swing; to feel, touch, shake