King James Bible Dictionary

(Heb. 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."

An unknown spice used in compounding the sacred perfume.
Exodus 30:34

(Heb. nataf) the name of one of the sweet spices which composed the holy incense. See (Exodus 30:34)

the only passage of Scripture in which the word occurs. Some identify the nataf with the gum of the storer tree (Styraz officinale), but all that is positively known is that it signifies an odorous distillation from some plant.

STACTE, noun [Latin , Gr.] A fatty resinous liquid matter, of the nature of liquid myrrh, very odoriferous and highly valued. But it is said we have none but what is adulterated, and what is so called is liquid storax.