con*tem`po*ra"ne*ous*ness
Webster's Dictionary (GCIDE)
Contemporaneous \Con*tem`po*ra"ne*ous\, a. [L. contemporaneus; con- + tempus time. See Temporal, and cf. Contemporaneous.] Living, existing, or occurring at the same time; contemporary. [1913 Webster]
The great age of Jewish philosophy, that of Aben Esra, Maimonides, and Kimchi, had been contemporaneous with the later Spanish school of Arabic philosophy. --Milman -- Con*tem`po*ra"ne*ous*ness, n. [1913 Webster]