Pippa
Pippa, a condensation of Philippa that turns it from serious to sprightly, has come into the public eye in a big way via the former Kate Middleton's sister.
Heard far more in the UK than the US, Pippa has been used on its own since the nineteenth century, popularized by Robert Browning's dramatic poem, Pippa Passes. A recent film was titled The Private Lives of Pippa Lee.
Pippa can and is given as a name in its own right, and may also be short for names other than Philippa: Penelope, for instance, or Patricia, or the more exotic Philippine.

