caveat
/ˈkævɪæt/noun
1- a warning or proviso of specific stipulations, conditions, or limitations警告, 限制性条款。
1.1
- Law a notice, especially in a probate, that certain actions may not be taken without informing the person who gave the notice【律】预告登记（尤指遗嘱检验中, 非告知本人而不得进行某行为的通知）。
词源
mid 16th cent.: from Latin， literally 'let a person beware'.