Belonging to or living in the same period of time as another person or thing; contemporary.
From Latin 'co-' (together) and 'temporarius' (temporal, from 'tempus' meaning time). This is an older or more formal variant of the commonly used word 'contemporary'.
If 'contemporary' is the modern way to say it, 'cotemporary' is like wearing a three-piece suit to describe the same idea—it's the fancier, more old-fashioned version of exactly the same word.
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