expiration

noun

1. a breathing out, as of air from the lungs
2. 1. something breathed out
   2. a sound, etc. made by breathing out
3. a breathing one's last; dying
4. a coming to an end; close
5. a formal termination on a closing date, as of a contract or subscription

Origin: ME expiracioun < L expiratio, exspiratio < pp. of exspirare, expire