Gnash, Gnashing - Vine's Expository Dictionary of New Testament Words

Gnash, Gnashing

[ A-1,Verb,G1031, brucho ]
primarily, to bit or eat greedily" (akin to bruko, "to chew"), denotes "to grind or gnash with the teeth," Acts 7:54.

[ A-2,Verb,G5149, trizo ]
primarily used of the sounds of animals, "to chirp, cry, squeak," came to signify "to grind or gnash with the teeth," Mark 9:18.

[ B-1,Noun,G1030, brugmos ]
akin to A, No. 1, denotes "gnashing" ("of teeth" being added), Matthew 8:12; Matthew 13:42,50; Matthew 22:13; Matthew 24:51; Matthew 25:30; Luke 13:28.

Vine's Expository Dictionary of New Testament Words