catechismyoudaoicibaDictYouDict
catechism: [16] Etymologically, catechism is ‘teaching by the spoken word’. It is a derivative of catechize [15], which comes ultimately from the Greek verb katēkhein, a compound formed from the prefix katá- ‘thoroughly’ and the verb ēkhein ‘sound, resound’ (related to English echo). Thus originally to ‘catechize’ someone was literally to ‘din’ instruction into them, hence ‘instruct orally’. The word came into English via a later ecclesiastical Greek derivative katēkhízein and Latin catēchīzāre.
=> echo
address (v.)youdaoicibaDictYouDict
early 14c., "to guide or direct," from Old French adrecier "go straight toward; straighten, set right; point, direct" (13c.), from Vulgar Latin *addirectiare "make straight," from Latin ad "to" (see ad-) + *directiare, from Latin directus "straight, direct" (see direct (v.)). Late 14c. as "to set in order, repair, correct." Meaning "to write as a destination on a written message" is from mid-15c. Meaning "to direct spoken words (to someone)" is from late 15c. Related: Addressed; addressing.
charm (n.)youdaoicibaDictYouDict
c. 1300, "incantation, magic charm," from Old French charme (12c.) "magic charm, magic, spell; incantation, song, lamentation," from Latin carmen "song, verse, enchantment, religious formula," from canere "to sing" (see chant (v.)), with dissimilation of -n- to -r- before -m- in intermediate form *canmen (for a similar evolution, see Latin germen "germ," from *genmen). The notion is of chanting or reciting verses of magical power.
A yet stronger power than that of herb or stone lies in the spoken word, and all nations use it both for blessing and cursing. But these, to be effective, must be choice, well knit, rhythmic words (verba concepta), must have lilt and tune; hence all that is strong in the speech wielded by priest, physician, magician, is allied to the forms of poetry. [Jacob Grimm, "Teutonic Mythology" (transl. Stallybrass), 1883]
Sense of "pleasing quality" evolved 17c. Meaning "small trinket fastened to a watch-chain, etc." first recorded 1865. Quantum physics sense is from 1964. To work like a charm (figuratively) is recorded by 1824.
murmur (n.)youdaoicibaDictYouDict
late 14c., "expression of discontent by grumbling," from Old French murmure "murmur, sound of human voices; trouble, argument" (12c.), noun of action from murmurer "to murmur," from Latin murmurare "to murmur, mutter," from murmur (n.) "a hum, muttering, rushing," probably from a PIE reduplicative base *mor-mor, of imitative origin (cognates: Sanskrit murmurah "crackling fire," Greek mormyrein "to roar, boil," Lithuanian murmlenti "to murmur"). Meaning "softly spoken words" is from 1670s.