GNASH, GNASHING
NOUNS
1000 — GRIST gnashing of the teeth; hence, anger → obs.
1205 — GRISTBITE gnashing of teeth → obs.
1300 — GRISPING gnashing the teeth → obs.‘
VERBS
..900 — GRISTBITE to gnash the teeth → obs. exc. Eng. dial.
1300 — GRENT to gnash the teeth → obs.
1300 — GRINT to grind or gnash the teeth → obs.
1350 — MYE of teeth: to grind, to gnash → obs.
1440 — CRASH to strike the teeth together with noise; to gnash → obs.
1623 — INFRENDIATE to gnash the teeth, usually in anger → obs.
1715 — GANSH — GAUNCH to snatch at anything with open jaws, to snap, to snarl; to gnash the teeth → Sc.
1733 — GRIST to gnash or grind the teeth → obs. exc. dial.
1863 — NANG to gnash or grind the teeth → Eng. dial.
1891 — GANCH to snap with the teeth; to snarl, to bite, to gnash the teeth → Sc.
Lexicophilia 