Nova Derivativa Verba Latina, Pars Tricentesima Octogesima Septima

[diaphanus]

"Nova Derivativa Verba Latina, Pars Tricentesima Octogesima Septima"
"New Latin Derivatives, Part Three Hundred Eighty-Seven"

Yes:

suppeditrix -tricis f. "one who farts quietly"
[suppedere "to fart quietly" + -trix agent noun suffix]
[suppede- + -tric-] stems
[suppedi- + -tric-] e becomes i
[suppeditric-] new stem
[suppeditrix] nominative singular