The German for "dessert" is "Nachtisch", composed of "nach", meaning "after", and "Tisch", meaning "table" or "meal". That's one of those typically apt Germanic compounds that mean exactly what they mean. "Tisch" is ultimately derived from Greek δίσκος (through Lat. discus, whence also English "disc" and "dish").
Word Genius' word today was autoschediastic, meaning "Impromptu, improvised, ex tempore or offhand." I had wondered if it was related to homoscedastic/heteroscedastic, meaning"having the same/different variances." I'm thinking they're not related.
ORIGIN OF AUTOSCHEDIASM
First recorded in 1835–45; from Greek autoschedíasma, derivative, with -(s)ma noun suffix, of autoschediázein “to extemporize,” verbal derivative of autoschédios “hand-to-hand, offhand, improvised,” equivalent to auto- auto-1 + schédios “near, casual, offhand,” derivative of schedón (adverb) “near, close by,” akin to échein “to hold, possess”
WORD ORIGIN FOR HETEROSCEDASTIC
C20: from hetero- + scedastic, from Greek skedasis a scattering, dispersal
"Read" seems to be an intruder here. Unless it's read in the sense of reading out loud in which case it would make a bit more sense. Or maybe they're making the act of reading more active than it is usually taken to be.