acacia

Definition:

The term "acacia" is the name of a common shrub or tree growing in the land of Canaan in ancient times; it is still plentiful in that region today.

The orange-brown wood of the acacia tree is very hard and durable, making it a useful material for building things.
This wood is highly resistant to decay because it is very dense so that it keeps out water, and it has natural preservatives that keep insects from destroying it.
In the Bible, acacia wood was used to build the tabernacle and the ark of the covenant.