cost-justify
[ kawst-juhs-tuh-fahy, kost- ]
/ ˈkɔstˌdʒʌs təˌfaɪ, ˈkɒst- /
verb (used with object), cost-jus·ti·fied, cost-jus·ti·fy·ing.
to justify the allotment or spending of a specific sum of money for (an investment, procurement, etc.).