the.com/acacia

means A genus of thorny trees and shrubs, often with feathery leaves and clusters of small yellow or white flowers, common in Africa, Australia, and warm regions worldwide.

from From Greek 'akakia,' the name Dioscorides gave to a thorny Egyptian tree, generally traced to 'ake,' meaning a sharp point or thorn — fitting for a plant that bristles with them. The word traveled through Latin into the European languages, and botanists later stretched it to cover the whole sprawling genus.