misappropriate
verb [ T ]
FINANCE, ACCOUNTING formal uk/ˌmɪsəˈprəʊprieɪt/ usto steal something that you have been asked to take care of, and use it for yourself:
The court found that he had misappropriated €50,000 intended for investment on behalf of a customer.
misappropriate funds/money/property She lied to investors and misappropriated taxpayer funds.