asseverative

/AH0 S EH1 V R AH0 T IH0 V/
adjective
  1. 1

    (linguistics) Serving to emphasize the certainty or truth of a statement.

  2. 2

    Characterized by asseveration; asserting positively.

noun
  1. 1

    (linguistics) A linguistic structure that serves to emphasize the certainty or truth of a statement.