unimmortalizev.
Etymology: Previous versions of the OED give the stress as: uniˈmmortalize.
the world > life > source or principle of life > continuance or tenacity of life > continue in life [verb (transitive)] > immortalize > deprive of immortality
1839 P. J. Bailey 336 They have well-nigh unimmortalized myself.
This entry has not yet been fully updated (first published 1924; most recently modified version published online June 2019).