contemporary
adj.
1630s, from Medieval Latin contemporarius, from Latin com- "with" (see com-) + temporarius "of time," from tempus "time" (see temporal, v.). Meaning "modern, characteristic of the present" is from 1866.
n.
"one who lives at the same time as another," 1630s, originally cotemporary, from co- + temporary; modified by influence of contemporary, adj.. Replacing native time-fellow (1570s).
〔李〕[com-;tempor;-arya.] a.当代的； 同时代的 ←tempor (L tempus,temporis)=section of time 时间
〔蒋〕[con-同，tempor时→时代，-ary形容词后缀，…的] 同时代的，同龄的，当代的;[-ary表示人] 同时代的人，同年龄的人