#5009 ταμεῖον tameion {tam-i'-on}

 contraction of a presumed derivative of tamias (a dispenser or
    distributor; TDNT - n/a; n n

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

 1) a storage chamber, storeroom
 2) a chamber esp. an inner chamber
 3) a secret room

—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 - closet 2, secret chamber 1, storehouse 1; 4

—Exhaustive Concordance (KJV Translation Frequency & Location)