Strong's Concordance

Original word: κατακόπτω
Transliteration: katakoptó
Definition (short): gashing
Definition (full): to cut up

NAS Exhaustive Concordance

Word Origin: from kata and koptó
Definition: to cut up
NASB Translation: gashing (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From kata and kopto; to chop down, i.e. Mangle -- cut.

see GREEK kata

see GREEK kopto

KJV: And always, night and day, he was in the mountains, and in the tombs, crying, and cutting himself with stones.
NASB: Constantly, night and day, he was screaming among the tombs and in the mountains, and gashing himself with stones.