Colleague John Guy shook hands solemnly with Zimmerman's counsel and murmured, "Congratulations."
I murmured the conventional things about his roles in film and theatre.
When the song “One and Only You” started playing on the tape, Jerry Lee smiled and murmured, “This is dedicated to you.”
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 (cf. Sanskrit murmurah "crackling fire," Greek mormyrein "to roar, boil," Lithuanian murmlenti "to murmur"). Meaning "softly spoken words" is from 1670s.
murmur mur·mur (mûr'mər)
An abnormal sound heard on auscultation of the heart, lungs, or blood vessels.