#2567 חמשׁ chamash {khaw-mash'}

 a denominative from H2568; TWOT- 686; v

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

 1) to arrange in multiples of five, take one fifth
    1a) (Piel) to take one fifth, tax a fifth of

—Brown-Driver-Briggs (Old Testament Hebrew-English Lexicon)

—Strong's (Hebrew & Chaldee Dictionary of the Old Testament)

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

 AV - fifth part 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)