Wheedle vs Plead - What's the difference?

As verbs the difference between wheedle and plead

is that wheedle is to cajole or attempt to persuade by flattery while plead is to present an argument, especially in a legal case.

and (intransitive)

To cajole or attempt to persuade by flattery.

* 1977 , ("The Wife of Bath's Tale"), Penguin Classics, p. 290:

Though he had beaten me in every bone / He still could wheedle me to love.

I'd like one of those, too, if you can wheedle him into telling you where he got it.

To obtain by flattery, guile, or trickery.

* Congreve

A deed of settlement of the best part of her estate, which I wheedled out of her.

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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