"Caveat" in Latin means let him beware and comes from the verb "cavēre" ("to be on guard"). Perhaps you've also heard "caveat lector": "let the reader beware," a warning to take what one reads with a grain of salt. English retained "caveat" itself as a noun for something that serves to warn, explain, or caution.

What's mean by caveat?

caveat in American English

1. a warning or caution; admonition. 2. Law. a legal notice to a court or public officer to suspend a certain proceeding until the notifier is given a hearing.

What is an example of caveat?

An admonition, caution, or warning. The definition of a caveat is a warning. An example of caveat is a police officer telling someone to stop or they'll shoot.