Etymology From Late Latin coaevus, from Latin con- (“equal”) + aevum (“age”).
1
Of the same age or era; contemporary.
Anything coeval with that clock will fetch a hefty price!
The Baralaba Coal Measures are coeval with the Bandana Formation.
3 more examples
The latter [Rollright Stones], which has every signature of Celticism, I conceive to be coeval and perhaps of a class with Stone-henge.1782, Thomas Warton, The History and Antiquities of Kiddington:
If, however, Orientalists be right in their interpretation of the name of Artaxerxes' queen, Parisatis, as Pari-zadeh (Peri-born), the Peri must be coeval with the religion of Zoroaster.1828, Thomas Keightley, The Fairy Mythology, volume I, London: William Harrison Ainsworth, page 27:
The differences between the Sao Khua dinosaur assemblage and the roughly coeval assemblages in China, notably those from the Jehol Group of NE China, have already been noted, and several hypotheses have been put forward, including differences in taphonomic conditions, and the existence of geographical or environmental barriers (Buffetaut et al. 2006; Fernandez et al. 2009).2009, Eric Buffetaut, Late Palaeozoic and Mesozoic Ecosystems in SE Asia:
Etymology From Late Latin coaevus, from Latin con- (“equal”) + aevum (“age”).
1
Something of the same era.
The telephone and television are coevals in that film.
2
Somebody of the same age.
[…] the fey grace, the elusive, shifty, soul-shattering, insidious charm that separates the nymphet from such coevals of hers […]1955, Vladimir Nabokov, Lolita, 1st American edition, New York, N.Y.: G[eorge] P[almer] Putnam’s Sons, published August 1958, →OCLC, part 1, page 19:
“That's your coeval, Keluga. He's trying to write the entire Roget's as a series of nested, rule-based schematics. Containment, relation, exclusion . . .” “Coeval? I'm thirty-five, Lentz. That guy's a kid.”1995, Richard Powers, Galatea 2.2, New York, N.Y.: Farrar Straus Giroux, →ISBN, page 77: