asseveratingadj.
Etymology: < asseverate v. + -ing suffix2.Previous versions of the OED give the stress as: aˈsseverating.
the mind > language > statement > assertion or affirmation > [adjective]
1838–9 T. Hood 19 With an asseverating thump on the table.
This entry has not yet been fully updated (first published 1885; most recently modified version published online June 2019).