Boyd’s Bible Dictionary:
(thorny). (1) An Asiatic tree, a species of acacia, producing a close-grained, yellowish wood used in making the sacred furniture of the tabernacle (Ex. 25:10-13; 26:15,26; 27:1; Isa. 41:19). (2) Last encampment of the Israelites before crossing the Jordan. Scene of the completion of the law and farewell of Moses (Num. 25; 31:1-12; Josh. 2:1; 3:1). The spies were sent out from Shittim to Jericho, and there the final preparations were made for crossing the Jordan. It was also called Abel-shittim, “meadow of acacias,” and was the well-watered, fertile plain stretching from the foot of the mountains of Moab to the banks of the Jordan. (3) “Valley of Shittim” (Joel 3:18), is doubtless same as Shittim (2), which was also known as Abel-shittim.
“Shittah Tree” From Concise Bible Dictionary:
See SHITTIM WOOD.
“Shittim Wood, Shittah Tree” From Concise Bible Dictionary:
Acacia Tree growing in Timna Park, in the Negev.
This is generally understood to be the Acacia, which is adopted in the RV. There are several varieties which grow in Egypt and Palestine, the Acacia seyal being the most common. They differ from the acacias known in England, which are from North America. The wood was extensively used in building the tabernacle, and the ark, the table of shewbread, and the altars were also made of the same (Ex. 25-38); Deut. 10:3). It is called the SHITTAH TREE (after the Hebrew, which is shittah in the singular) in Isaiah 41:19. The “burning bush” (Hebrews seneh), has been considered to be the wild acacia, A. nilotica. Livingstone judged that for the tabernacle the A. giraffa (Camel-thorn) was used, which he calls an “imperishable” wood.
Vachelia Erioloba – Camel Thorn – A. Giraffa
Acacia Nilotica
Strong’s Dictionary of Hebrew Words:
Meaning:
feminine of a derivative (only in the plural shittiym {shit-teem'}; meaning the sticks of wood) from the same as 7850; the acacia (from its scourging thorns)
KJV Usage:
shittah, shittim. See also 1029
Jackson’s Dictionary of Scripture Proper Names:
acacias