ex·pire 
(ĭk-spīr)
(ĭk-spīr)v. ex·pired, ex·pir·ing, ex·pires
v.intr.
1. To come to an end; terminate: My membership in the club has expired.
2. To breathe one's last breath; die: The patient expired early this morning.
3. To exhale; breathe out.
v.tr.
1. To breathe (something) out.
2. Archaic To give (something) off.
[Middle English expiren, from Old French expirer, from Latin exspīrāre : ex-, ex- + spīrāre, to breathe.]