perjury
noun
[ ˈpəːdʒ(ə)ri ]
• the offence of wilfully telling an untruth or making a misrepresentation under oath.
• "he claimed two witnesses at his trial had committed perjury"
Similar:
lying under oath,
violation of an oath,
forswearing oneself,
making false statements,
wilful falsehood,
mendacity,
mendaciousness,
Origin:
late Middle English: from Anglo-Norman French perjurie, from Latin perjurium ‘false oath’, from the verb perjurare (see perjure).