Catechesis
Origin
From Ancient Greek κατηχÎω (katÄ“kheÅ, "sound through, instruct orally, catechise"), from κατά (kata, "down") + ἠχή (Ä“khÄ“, "sound").
Full definition of catechesis
Noun
catechesis
(plural catecheses)- religious instruction given orally to catechumens