γογγυσμός

John 7:12 And there was much murmuring among the people concerning him: for some said, He is a good man: others said, Nay; but he deceiveth the people. Acts 6:1 And in those days, when the number of the disciples was multiplied, there arose a murmuring of the Grecians against the Hebrews, because their widows were neglected in the daily ministration. Philippians 2:14 Do all things without murmurings and disputings: 1 Peter 4:9 Use hospitality one to another without grudging.