Where does “camphora” come from?

camphora (Medieval Latin) comes from Ancient Greek καμφορά, from Arabic كَافُور, from Malay kapur, from Pahlavi 𐭪𐭠𐭯𐭥𐭫, from Sanskrit कर्पूर, from Pali kappūra, from Old Malay kapur, from Proto-Malayic *kapur — lime, calcium.