Strong's Concordance G1031

Original Word: βρύχω

Transliteration: brýchō

Phonetic Spelling: broo'-kho

[βρύχω] a primary verb; to grate the teeth (in pain or rage)

Usages throughout the bible

Acts 7:54 - When they heard these things, they were cut to the heart, and they gnashed ^G1031 on him with their teeth.