grate the teeth

prop., of sounds by animals, , etc. to cry, chirp Of other sounds, e.g., trans., , or : .† τ. ὀδόντας to gnash grind the teeth Mk 9:18

knerst

I grate, gnash (as the teeth).

to gnash

to creak (squeak), i.e. (by analogy) to grate the teeth (in frenzy)

gnash

τρίζω [in Aq.: Amo.2:13; Sm.: Isa.38:14 * ;] 1. prop., of sounds by animals, to cry, chirp, etc. 2. Of other sounds, e.g., trans., τ. ὀδόντας, to gnash or grind the teeth: Mrk.9:18.† (AS)