reinsure
verb [ I or T ]
INSURANCE (also re-insure) uk/ˌriːɪnˈʃɔːr/ usif an insurance company reinsures, it buys insurance from other companies to protect itself against large demands from its customers:
The company doesn't like to reinsure catastrophe insurers, as natural disasters like storms are becoming increasingly unpredictable.
reinsurer
noun [ C ]
Many insurance companies are holding talks with their reinsurers over price increases.