#1159 בָּעוּ ba`uw (Aramaic) {baw-o''}

 from H1152; TWOT - 2635a; n f

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

 1) petition, request
 2) prayer (always in Jewish liturgy)

—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 - petition 2; 2

—Exhaustive Concordance (KJV Translation Frequency & Location)