the technique of repeating a word or phrase for emphasis.
1650–60; L. palilogia, Gk palillogía = recapitulation; from pálin = again, back + -le`gein to speak
All shall be well, and all shall be well, and all manner of things shall be well.
This phrased was claimed to be the words of God spoken to great English mystic Julian of Norwich and become well known in Christian theology. T.S. Eliot refers to it in "Little Giddling".
Whatever we inherit from the fortunate
We have taken from the defeated
What they had to leave us—a symbol:
A symbol perfected in death.
And all shall be well and
All manner of thing shall be well
By the purification of the motive
In the ground of our beseeching.
Palilogy was a apparently a preferred form of rhetoric, to great effect, for Eliot. (I like it too.)
If you're feeling interactive today, post your favorite quotes with palillogies in the comments!