The odor of old age, of dust, of unwashed clothes and stale food intensified as the unwound a moth-eaten black shawl, revealing a head of scant white hair through which the scalp showed clearly.
This scant news made Harry want to see Ginny so badly it felt like a stomachache; but it also made him think of Ron again, and of Dumbledore, and of Hogwarts itself, which he missed nearly as much as his ex-girlfriend.
There are no more uses of "scanty" in the book.
Show samples from other sources
I had a strong suspicion, but scanty evidence.
It was a gloomy company that huddled under the dripping trees to eat their scanty supper.
C.S. Lewis -- Prince Caspian: The Return to Narnia