Braggart (noun)

1. A person who boasts excessively about his or her own accomplishments, abilities, or possessions.
2. A person who makes loud and exaggerated claims.

Origin:

The word 'braggart' originates from the middle english word 'braguer' meaning a boaster.

Examples:

1. The braggart was always talking about his latest achievements and how much better he was than everyone else.
2. The braggart's constant boasts were starting to wear thin, and people were getting tired of hearing about his supposed greatness.
3. The braggart was a showoff, always seeking to impress others with his wealth, power, and intelligence.
4. The braggart was a source of constant annoyance to his friends, who found his boasts and pretensions to be tiresome and insincere.
5. The braggart was eventually exposed as a fraud, and his boasts were revealed to be nothing more than empty words.