#3872 παρακαταθήκη parakatatheke {par-ak-at-ath-ay'-kay}

 from a compound of G3844 and G2698; TDNT - 8:162,1176; n f

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

 1) a deposit, a trust or thing consigned to one's faithful keeping
    1a) used of the correct knowledge and pure doctrine of the gospel,
        to be held firmly and faithfully, and to be conscientiously
        delivered unto others

—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 - that committed to (one's) trust + G3588 2; 2

—Exhaustive Concordance (KJV Translation Frequency & Location)