Emeritus

n.; pl. E-MĔR'Ĭ-TĪ. [Lat., one who has served out his time, from emerere, emereri, to obtain by service, to serve out one's term, from e, out, and merere, mereri, to merit, earn, serve.] One who has been honorably discharged from public service.

a. [Lat.] Honorably discharged from the performance of public duty, on account of age, infirmity, or long and faithful service; — said of an officer in a college or university.