Noah Webster's Dictionary (p. pr. & vb. n.) of Mutter.

Multi-Version Concordance Muttering (3 Occurrences) John 7:12 There was much murmuring among the multitudes concerning him. Some said, "He is a good man." Others said, "Not so, but he leads the multitude astray." (See RSV) John 7:32 The Pharisees heard the multitude murmuring these things concerning him, and the chief priests and the Pharisees sent officers to arrest him. (See NAS RSV) Lamentations 3:62 The lips of those that rose up against me, and their device against me all the day. (See JPS)