alumnus
Concise Oxford English Dictionary © 2008 Oxford University Press:
alumnus /əˈlʌmnəs/
▶noun (pl. alumni /-ni/) a former pupil or student of a particular school, college, or university.
– origin C17: from L., ‘nursling, pupil’, from alere ‘nourish’.
'alumnus' also found in these Oxford entries:

