Here are the necromancer research words from this
link that I have never seen(I've done a ton of dumpster diving).
lvl 34 Wave of Enfeeblement II- Words of Abatement, Words of Efficacy
lvl 39 Nullify Magic- Words of Descrying, Words of Seizure
Also, Words of Burnishing are used only for the 44th lvl spell dead man floating but begin dropping about lvl 20ish.