Main Entry: as·sump·sit

Pronunciation: \ə-ˈsəm(p)-sət\

Function: noun

Etymology: New Latin, he undertook, from Latin assumere to undertake

Date: 1590

1 : an express or implied promise or contract not under seal on which an action may be brought
2 a : a former common-law action brought to recover damages alleged from the breach of an assumpsit b : an action to recover damages for breach of a contract