repurchase (verb) ransom: pay blackmail money for return of possession or person
Sinonime: buy freedom of, buy out,
deliver,
emancipate,
extricate,
free,
liberate, manumit, obtain release of, pay for release of,
recover,
redeem,
regain,
release, reprise, repurchase,
rescue,
save, set free, unchain, unfetter