gnash <PSA112 -10> The wicked shall see [it], and be grieved; he shall {gnash} with his teeth, and melt away: the desire of the wicked shall perish.
gnash <LAM2 -16> All thine enemies have opened their mouth against thee: they hiss and {gnash} the teeth: they say, We have swallowed [her] up: certainly this [is] the day that we looked for; we have found, we have seen [it].

 
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