Implead vs Plead - What's the difference?

As verbs the difference between implead and plead

is that implead is to sue in court, raise an action against a defendant while plead is to present an argument, especially in a legal case.

(en verb)

(label) to sue in court, raise an action against a defendant

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To present an argument, especially in a legal case.

* Bible, Job xvi. 21

O that one might plead for a man with God, as a man pleadeth for his neighbour!

To beg, beseech, or implore.

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