taper off

Từ điển WordNet v3.1 - WordNet Dictionary

verb

1. end weakly (Freq. 1)
- The music just petered out--there was no proper ending
• Syn:
peter out, fizzle out, fizzle
• Hypernyms:
discontinue
• Verb Frames:
- Something ----s
2. become smaller or less active
- Business tapered off
• Hypernyms:
narrow, contract
• Verb Frames:
- Something ----s