#4919 συνθρύπτω sunthrupto {soon-throop'-to}

 from G4862 and thrupto (to crumble); TDNT - n/a; v

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) break in pieces, to crush
 2) metaph.
    2a) to break one's heart
    2b) to deprive of strength and courage, dispirit, incapacitate for
        enduring trials

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - break 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)