#1456 ἐγκαίνια egkainia {eng-kah'-ee-nee-ah}

 plural of a presumed compound from G1722 and G2537; TDNT - n/a; n n

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

 1) dedication, consecration
    1a) in particular the annual feast celebrated eight days beginning
        in the 25th of Chislev (middle of our December), instituted by
        Judas Maccabaeus [164 BC] in memory of the cleansing of the
        temple from the pollution of Antiochus Epiphanes

—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 - feast of dedication 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)