Ultimate
final demand (with a threat)
final
final, concluding
One such word is plaintiff, which word represents the instigator of a legal action. What if is another example, if you believe this is a complete sentence.
the base word is Finish.
to be done
Final
final
final demand (with a threat)
final
'Bidding' perhaps as in "Such is my bidding to you" makes sense to me Ultimatum is another word for Final Demand
Ending
Effectuate, Absolute, Final, Finished
Alternate words for "final part" could be "conclusion", "finale" or simply "ending".
In the end - finally, at last, ultimately, in the final analysis
There isn't a final syllable in the word called. The word called is only one syllable. The -ed may make it sound like another syllable but it isn't.
armageddon ragnarok apocalypse final finale finis conclusion denouement