I guess it's probably short for
Kaitlyn or
Kaitlin. It's fine in that context, but it will always be spelled wrong. I like the look of Kaity, though.
LISTEN TO THE MUSTN'TS
-
Shel Silverstein
Listen to the MUSTN'TS, child,
Listen to the DON'TS
Listen to the SHOULDN'TS
The IMPOSSIBLES, the WON'TS
Listen to the NEVER HAVES
Then listen close to me—
Anything can happen, child,
ANYTHING can be.