#4901 συνεπιμαρτυρέω sunepimartureo {soon-ep-ee-mar-too-reh'-o}

 from G4862 and G1957; TDNT - 4:508,564; v

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

 1) at attest together with
 2) to join in bearing witness, to unite in adding testimony

—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 - also bear witness 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)