The quality or state of being coeval; the fact of existing or occurring at the same time.
From coeval (Latin coaevus) + -neity (suffix creating abstract nouns, related to -ity). This is a less common variant of coevality with the same meaning and origin.
Archaeologists confirm the coevalneity of pottery shards and bones using carbon dating—proving that ancient humans and their creations lived together at the same moment in time.
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