Today's Daily Brain Teaser (Aug 08, 2013)

Forget Me Not?



I can be repeated,

But often not in the same way.



I can't be changed,

But can be rewritten.



I can be forgotten,

And can also be lost with death.



My first is in horses,

But not in ponies.



My last is in pretty,

But not in beautiful.



What am I?





Check Braingle.com for the answer.