Where does “acacia” come from?

acacia (Romanian) comes from Latin acacia, from Ancient Greek ἀκακία, from Ancient Greek ἀκή, from Proto-Indo-European h₂eḱ- — sharp.

acacia (Romanian): shrubs or trees of the genus "Acacia"

Definitions

Step	Language	Word	Meaning
1	Latin	acacia	the gum arabic tree; the juice or gum of this...
2	Ancient Greek	ἀκακία	An acacia tree; innocence
3	Ancient Greek	ἀκή	point; silence; healing
4	Proto-Indo-European	h₂eḱ-	sharp