a. [ L. coaevus; co- + aevum lifetime, age. See Age, n. ] Of the same age; existing during the same period of time, especially time long and remote; -- usually followed by with. [ 1913 Webster ]

Silence! coeval with eternity! Pope. [ 1913 Webster ]

Oaks coeval spread a mournful shade. Cowper. [ 1913 Webster ]

n. One of the same age; a contemporary. [ 1913 Webster ]

As if it were not enough to have outdone all your coevals in wit. Pope. [ 1913 Webster ]