Remurmur

Re‐mur″mur (r?–m?r″m?r), v. t. & i. [Pref. re- + murmur: cf. F. remurmurare.] To murmur again; to utter back, or reply, in murmurs.

The trembling trees, in every plain and wood,

Her fate remurmur to the silver flood. Pope.