Perjurer (noun)

A person who makes a false statement under oath or affirmation, especially in a court of law.

Origin:

From old french parjure, from latin periurare 'to swear falsely'.

Examples:

1. The perjurer's false testimony seriously jeopardized the integrity of the legal proceedings and resulted in a mistrial.
2. The perjurer faced severe legal consequences for their actions, including imprisonment and fines.
3. The perjurer's lies were exposed when new evidence came to light, causing them to retract their testimony and admit their guilt.
4. The perjurer's credibility was destroyed, and they were discredited as a witness in any future legal proceedings.
5. Perjury is a serious crime, as it undermines the trust in the judicial system and erodes public confidence in the administration of justice.