As you know Latin is a source language for many words in English. Some of these words have mutated when they have entered English but a lot of words are used in English the way they were in original Latin. A look at a few of them,
From the very beginning; from the source or origin.
This is the source word for aboriginal/aborigine.
Let the buyer beware
It is the principle that the seller of a product cannot be held responsible for its quality unless it is guaranteed in a warranty.
In secret; privately
A slip of the tongue
an exact copy, as of a book, painting, or manuscript. It means “make the like”
This is the source word for fax.