Wiktionary
vb. (context intransitive English) To become less or fewer.
WordNet
Usage examples of "drop away".
The fierceness seemed all to drop away from him, whelmed in the immensity of his astonishment.
I quiver with anticipation, convinced that the instant this child moves out of the way, the block will drop away and I will be able to dash forward and smite the Enemy in Dead-End Gorge.
They had seemed to drop away, before, but they came back heartily and with hands out.
And only after I arrived here, after I spent eight solid hours talking to Rowan, did the last of my suspicions drop away.
Then they began to drop away again, making steps for a giant down into another low land.
Carialle felt the invisible hands holding her down to the surface of the planet drop away, and gather at the foot of her ship.
Soon her young men would unwrap themselves from around her little fingers and drop away.
Once, when a man stepped suddenly from a doorway we were approaching, I saw her hand flash toward the dagger at her belt, then drop away.
As I watched the ground drop away beneath me, I knew that a phase of my existence had indeed ended.
Like getting caught eavesdropping, or lying, or sitting on the toilet and having the bathroom walls suddenly drop away.