Noah Webster
Remurmur
REMUR'MUR, verb transitive [Latin remurmuro; re and murmuro.]
to utter back in murmurs; to return in murmurs; to repeat in low hoarse sounds.
The trembling trees in every plain and wood, her fate remurmur to the silver flood.
REMUR'MUR, verb intransitive to murmur back; to return or echo in low rumbling sounds.
The realms of Mars remurmur'd all around.