(Hebrews nataph), one of the components of the perfume which was offered on the golden altar (Exodus 30:34; R.V. marg., "opobalsamum"). The Hebrew word is from a root meaning "to distil," and it has been by some interpreted as distilled myrrh. Others regard it as the gum of the storax tree, or rather shrub, the Styrax officinale. "The Syrians value this gum highly, and use it medicinally as an emulcent in pectoral complaints, and also in perfumery."

Noah Webster's New International Dictionary of the English Language

(n.) One of the sweet spices used by the ancient Jews in the preparation of incense. It was perhaps an oil or other form of myrrh or cinnamon, or a kind of storax.