Senescence

From Dictionary.com

senescence \sih-NEH-suhn(t)s\, noun:
The state of being old; the process of growing old; aging.

Senescence is from Latin senescere, "to grow old," from senex, "old." It is related to senile. The adjective form is senescent.

Well, doesn't that just make a person feel special? Saw this first thing this morning and it just made this senescent person feel so young and spry.