from Wiktionary, Creative Commons Attribution/Share-Alike License.
Teaching(or learning) by subconsciousmeans.
Sorry, no etymologies found.
The teaching technique, to be sure, was called hypnopaedia, an ancient word from still - more ancient Greek roots which when translated literally mean-t "sleep-teaching."
"Deep hypnopaedia," or some such slovo, said one of these two vecks.
Not all of his education was machine education, either, for, as he slowly realized, no one really leans anything through hypnopaedia; machine teaching at its best enables the student to accumulate nothing better than facts; it does not show how to tie them together, let alone how to do something with them.