fall away phrasal verb ( see also ↑ fall )
1 . to slope down:
From where we stood, the ground fell away sharply to the valley floor.
2 . to become separated from something after being fixed to it:
The paint was falling away in patches.
3 . if a feeling falls away, you stop having it, usually suddenly:
The view from the top was wonderful and our tiredness fell away.
4 . British English to decrease SYN fall OPP rise :
Demand for our more theoretical courses has fallen away.