gnash /ˈnæʃ/
(vt.)(vi.)咬牙切齒咬
Gnash v. t. [imp. & p. p. Gnashed p. pr. & vb. n. Gnashing.] To strike together, as in anger or pain; as, to gnash the teeth.
Gnash, v. i. To grind or strike the teeth together.
There they him laid,
Gnashing for anguish, and despite, and shame. --Milton.
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gnash
v : grind together, of teeth
Gnash
Heb. harak, meaning "to grate the teeth", (Job 16:9; Ps. 112:10;
Lam. 2:16), denotes rage or sorrow. (See also Acts 7:54; Mark
9:18.)