belaborousadj.
Etymology: < belabour v. + -ous suffix.Previous versions of the OED give the stress as: beˈlaborous.
1860 21 Apr. 47 Coleridge, who had many a thrashing..from the belaborous Doctor..at the Blue~coat School.
This entry has not yet been fully updated (first published 1887; most recently modified version published online September 2019).