Where does “papilus” come from?

papilus (Vulgar Latin) comes from Latin papyrus, from Ancient Greek πάπυρος — the plant papyrus.

Ancestry of “papilus”, step by step

Step	Language	Word	Meaning
1	Latin	papyrus	papyrus; a garment made from papyrus; paper made...
2	Ancient Greek	πάπυρος	the plant papyrus