disyllabifydissyllabifyv.
Etymology:  <  Latin disyllabus (see above) + -fy suffix.Previous versions of the OED give the stress as: disyˈllabify.
1846    J. E. Worcester   				Disyllabify.
Derivatives
 1846    J. E. Worcester  (at cited word)  				Disyllabification.
 This entry has not yet been fully updated (first published 1897; most recently modified version published online September 2021).