amortize

amortize
amortise, / əˈmɔ:taɪz; ?@ ˈæmərtaɪz; `æmɚˌtaɪz/ v [Tn]
(law 律) end (a debt) by making regular payments into a special fund 向某基金管理机构分期偿还, 摊还（债款）.

牛津英汉双解词典