#2178 ἐφάπαξ ephapax {ef-ap'-ax}

 from G1909 and G0530; TDNT - 1:383,64; adv

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

 1) once, at once
    1a) all at once
    1b) once for all

—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 - once 5; 5

—Exhaustive Concordance (KJV Translation Frequency & Location)