The story
Partial calque of Arabic صَابُون نَابُلْسِيّ (ṣābūn nābulsiyy).
Etymology from Wiktionary, CC BY-SA 4.0.
Nabulsi soap
Today it means: An ivory-coloured, almost scentless Castile soap produced in Nablus in the West Bank, Palestine, using virgin olive oil. Full definition →