catechism

The story

1. Ancient Greek · derived from*κατηχισμός
2. Late Latin · derived fromcatechismus
3. English todaycatechism

From Late Latin catechismus, from Ancient Greek *κατηχισμός (*katēkhismós), from κατηχίζω (katēkhízō, “to catechize”), a later extended form of κατηχέω (katēkhéō, “to catechize, instruct, teach by word of mouth”), from κατά (katá, “down”) + ἠχέω (ēkhéō, “to sound, resound”).