contemporary (adj.)

1630s, from Medieval Latin contemporarius, from Latin com "with, together" (see com-) + temporarius "of time," from tempus "time, season, portion of time" (see temporal (adj.)). Meaning "modern, characteristic of the present" is from 1866.

contemporary (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).