Nova Derivativa Verba Latina, Pars Ducentesima Undeoctogesima

[diaphanus]

"Nova Derivativa Verba Latina, Pars Ducentesima Undeoctogesima"
"New Latin Derivatives, Part Two Hundred Seventy-Nine"

Yes:

neesse -sum "to not be"
[ne- "no" + esse "to be"]
[neesse] as one word; present infinitive