"having the same age," formed in English early 17c. from Late Latin coaevus, from Latin com- "equal" (see co-) + aevum "an age" (see eon). As a noun from c. 1600.
实用例句
1. The industry is coeval with the construction of the first railways.
这一产业和初期铁路的建造相伴而生。
来自《权威词典》
2. Analysis has proved that this document is coeval with that one.