noun
thicket; bush; clump of bushes
Refers to a dense patch of grass and bushes, often in a wild or overgrown area.
庭の隅に草薮ができている。
A thicket has grown in the corner of the garden.
草薮の中から虫の声が聞こえる。
I can hear insects chirping from inside the clump of bushes.
Compound of 草 (くさ, grass) and 薮 (やぶ, thicket). The exact historical derivation is straightforward.