To rise or ascend together at the same time or in the same direction.
From 'co-' (together) and 'ascend' (to go up), from Latin 'ascendere.' This is a rare or specialized term, possibly used in astronomy or technical contexts to describe simultaneous upward movement.
In astronomy, stars that 'coascend' rise together over the horizon at specific times of year, which ancient astronomers used to predict seasons and navigate—long before telescopes existed!
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