Liar (noun)

A person who tells lies.

Origin:

Middle english, from old english lygere, from late latin lēgātor, from latin lēgāre to lie.

Examples:

1. He was a notorious liar and always got caught eventually.
2. She was accused of being a liar by her ex-boyfriend.
3. The liar tried to convince everyone that he was telling the truth.
4. It was hard to believe anything the liar said because of his history of deceit.
5. The liar's stories were always so far-fetched that it was easy to see through them.