coeval
Concise Oxford English Dictionary © 2008 Oxford University Press:
coeval /kəʊˈiːv(ə)l/
▶adjective having the same age or date of origin; contemporary. ▶noun a person of roughly the same age as oneself; a contemporary.
– derivatives
coevality noun,
coevally adverb.
coevality noun,
coevally adverb.
– origin C17: from late L. coaevus, from co- ‘jointly, in common’ + L. aevum ‘age’.
'coeval' also found in these Oxford entries:

