From Old French averrement, averement, from averer (Modern French avérer).
averment (countable and uncountable, plural averments)
- The act of averring, or that which is averred; positive assertion.
- 1924, Herman Melville, Billy Budd, London: Constable & Co., Chapter 16, 
- And for some of these averments, he added, substantiating proof was not far.
- verification; establishment by evidence.
- A positive statement of facts; an allegation; an offer to justify or prove what is alleged.