αποστηθίζω

Etymology
or from Mediaeval, from Hellenistic expression, see.

Verb

 * 1) to memorise, memorize , learn by heart

Usage notes
Although passive forms are not mentioned in dictionaries of either modern nor ancient and mediaeval Greek, they may be formed chiefly in present, but also in simple past (αποστηθίστηκα) and passive perfect participle. Learned forms, as in the older inflection of ἀποστηθίζω.