חָרַק (ḥāraq) is
a Hebrew verb
meaning gnash. It appears
5 times
in 3 books of the Hebrew Bible
(Strong's H2786).
Also rendered
to grind
Same Hebrew root (TWOT 755)
Range of meaning (TWOT 755)gnash, grind; grate the teeth
Full entry: Brown-Driver-Briggs and Strong's
חָרַקverb: gnash, grind
gnash or grind the teeth, only poetic
Strong's H2786חָרַק: to grate the teeth KJV:gnash.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.