asseveration
noun
[ əˌsɛvəˈreɪʃ(ə)n ]
• the solemn or emphatic declaration or statement of something.
• "I fear that you offer only unsupported asseveration"
Origin:
mid 16th century: from Latin asseveratio(n- ), from the verb asseverare, from ad- ‘to’ + severus ‘serious’.
