bindingnessn.
Etymology: Formed as binding adj. + -ness suffix.Previous versions of the OED give the stress as: ˈbindingness.
the mind > will > necessity > [noun] > absolute compulsion or obligation
1874 H. Sidgwick viii. 87 The truth and bindingness of..these current rules.
This entry has not yet been fully updated (first published 1887; most recently modified version published online June 2019).