Gith lives are eternal, once we make it to the Astral Plane. There is an absence of time there.

[ Her eyes narrow a bit at being pointed at, especially once she sees the schwasted nature of the other woman's stare... even if she's been drinking herself, she's considerably less lost in the sauce at the moment. Her chin tilts up proudly. ]

But I would never assume to know the exact answer, elf. A well timed blade could prematurely end the life of someone meant to live for centuries. [ a beat, and then pointed: ] Are you so certain of how long you will live?