co·e·val
adjective/kəʊˈiːvl/
/kəʊˈiːvl/
(formal)- coeval (with something) (of two or more things) being the same age or having the same date of origin
（与…）同龄，同时代，同时期出现 - 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。
Word Originearly 17th cent. (as a noun): from late Latin coaevus, from co- ‘jointly’ + Latin aevum ‘age’. - The industry is coeval with the construction of the first railways.