Assumpsit常用于法律语境中：

1.口头契约；履行口头合同的明示或默示的协议。

an express or implied agreement to perform an oral contract.

2、(1875年之前)损害赔偿之诉

an action to recover damages for breach of an express or implied contract or agreement that was not under seal

相关法律术语：

general assumpsit 不当得利令状

action of assumpsit 要求赔偿违约所造成损害的诉讼

indebitatus assumpsit 被告承认负担债务之诉

implied assumpsit 默示允诺；默示有偿契约

Special Assumpsit 承诺履行赔偿

参考双语例句：

The duty of the post-contract is obviously quite different from the contract given duty, the contract assumpsit duty and the pre-contract duty.

后合同义务与合同给付义务、约定义务、先合同义务有着显著的不同。

The legal compulsory regulation means when it is applied it should not be changed by the purpose of party, and it can not be obviated or changed by assumpsit.

强制性规定是指其在适用时不以当事人的意志为转移，不用通过约定来予以排除或变更的规定。