Sound Down

"The word 'catechism' derives from the Greek word katecheo which is found in several places in Scripture. The most familiar is Luke 1:4, where Luke explains why he wrote his Gospel: 'that you may know the certainty of those things in which you were instructed [catechichized].' Like many Greek words katecheo is put together from two words, in this case kata, meaning 'down toward,' and echeo, meaning 'to sound.' Katecheo is 'sound down.'"

-Donald Van Dyken, Rediscovering Catechism, 12-13.