inflammable liquid distilled from petroleum, 1570s, from Latin, from Greek naphtha "bitumen," perhaps from Persian neft "pitch," or Aramaic naphta, nephta, but these could as well be from Greek. In Middle English as napte (late 14c.), from Old French napte, but the modern word is a re-introduction.
naphtha naph·tha (nāf'thə, nāp'-)
Any of several highly volatile, flammable liquid mixtures of hydrocarbons distilled from petroleum, coal tar, or natural gas and used as solvents and in making various chemicals.