Emeritus
Emeritus , adjective
[Latin, having served out his time, past participle of emerere, emereri, to obtain by service, serve out one's term; e out + merere, mereri, to merit, earn, serve.]
Honorably discharged from the performance of public duty on account of age, infirmity, or long and faithful services; -- said of an officer of a college or pastor of a church.
Emeritus (#) , noun
[Latin]
A veteran who has honorably completed his service.