. Скрежета́ли

 ( They Gnashed, They Were Grinding )

 skree-jee-TAH-lee
 Verb - Plural - Past Tense - Continuous
RUSV Only: 1
See also   (Смотрите Та́кже) :
 Acts 7:54 RUSV
54 Слу́шая сие́,
54 Listening this,
они́ рвались сердца́ми свои́ми и скрежета́ли на него́ зуба́ми.
[they, they are] (they were torn) [heart, hearts] (with their own) and [they gnashed, they were grinding] [at, by, in, it, on the, to, toward, upon] him [teeth, with my teeth, with teeth].

When they heard these things,
they were cut to the heart,
and they gnashed on him with their teeth.
Acts 7:54 KJV