affidavit C1 Topic:Law & Government US /ˌæf.ɪˈdeɪ.vɪt/ UK /ˌæf.ɪˈdeɪ.vɪt/ See IPA manual Meanings 1 noun A written statement that someone swears to be true, used as evidence in a court of law The witness signed an affidavit confirming what she had seen. Thesaurus Synonyms 1 noun · a written statement that... sworn statementdepositiondeclaration Word family Related forms oathtestimonydeposeswearverifywitness Etymology AI details From Medieval Latin affīdāvit, literally 'he/she has pledged', from Latin ad- ('to') + fīdō ('to trust'), from fidēs ('faith'). fidēs Latin ad- Latin View etymology graph -> Topics Law & Government Crime & Justice External links Cambridge Dictionary Wiktionary Google Images # affidavit **Type:** Word **Level:** C1 **Part of speech:** noun **IPA (US):** /ˌæf.ɪˈdeɪ.vɪt/ **IPA (UK):** /ˌæf.ɪˈdeɪ.vɪt/ ## Meanings 1. A written statement that someone swears to be true, used as evidence in a court of law ## Examples - The witness signed an affidavit confirming what she had seen. ## Synonyms - sworn statement - deposition - declaration ## Related Forms - oath - testimony - depose - swear - verify - witness ## Roots and Affixes - Root: fidēs - Root: ad- ## Etymology From Medieval Latin affīdāvit, literally 'he/she has pledged', from Latin ad- ('to') + fīdō ('to trust'), from fidēs ('faith'). ## AI Etymology Affidavit is from Medieval Latin affīdāvit, literally 'he/she has pledged', from Latin ad- ('to') plus fīdō ('to trust'), from fidēs ('faith'). The formation is semantically transparent: the parts remain visible, while the compound or affix fixes the grammatical role and narrows the modern meaning. In use as a noun, affidavit denotes a written statement that someone swears to be true, used as evidence in a court of law. The same word family continues in related entries such as oath, testimony, depose, and swear. ## Topics - Law & Government - Crime & Justice markdown