collateralize
col lat er al ize |kəˈlatərəˌlīz, kəˈlatrə -kəˈlædərəlaɪz | ▶verb [ with obj. ] provide something as collateral for (a loan ): these loans are collateralized by property.
collateralize |kɒˈlat (ə )r (ə )lʌɪz |(also collateralise ) ▶verb [ with obj. ] provide something as collateral for (a loan ).