Strong's #1458: egkaleo (pronounced eng-kal-eh'-o)
 from 1722 and 2564; to call in (as a debt or demand), i.e. bring to account (charge, criminate, etc.):--accuse, call in question, implead, lay to the charge.
Thayer's Greek Lexicon:
 ̓́ 
 
  egkaleō 
 
 1) to come forward as accuser against, bring charge against
 2) to be accused
 
  Part of Speech: verb
Relation: from G1722 and G2564
  Citing in TDNT: 3:496, 394
 
Usage:
This word is used 7 times:
Acts 19:38: "the law is open, and there are deputies:  let them implead one another."
Acts 19:40: "For we are in danger to  be called in question for this day's uproar, there being"
Acts 23:28: "the cause wherefore  they accused him, I brought him forth"
Acts 23:29: "Whom I perceived  to be accused of questions of their law, but"
Acts 26:2: "touching all the things whereof  I am accused of the Jews:"
Acts 26:7: "which hope's sake, king Agrippa,  I am accused of the Jews."
Romans 8:33: "Who  shall lay any thing to the charge of God's elect? It is God that justifieth."