shittimwood means wood of the shittim (Vachelia seval). Lexicurio rates it Rare gem — a strength score of 74 out of 100.
noun
- Wood of the shittim (Vachelia seval).“¶ And they shall make an Arke of Shittim wood: two cubites and a halfe shalbe the length thereof, and a cubite and an halfe the breadth thereof, and a cubite & a halfe the height thereof.”