Talk:catechesis
Here is a possible etymology that touches on sound Orthodox pedagogy as well. From, Etymology Online.
catechesis (n.) Look up catechesis at Dictionary.com
from Gk. katekhesis "instruction by word of mouth," from katekhein "to instruct orally," originally "to resound" (with sense evolution via "to sound (something) in someone's ear; to teach by word of mouth." From kata- "down" (in this case, "thoroughly") + ekhein "to sound, ring," from ekho "sound," from PIE *(s)wagh- "to resound."
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