Plural of equinox; the two times per year (around March 20 and September 22) when day and night are approximately equal length.
From Latin 'equinoxium', combining 'equi-' (equal) + 'nox' (night). The plural form adds '-es' to the English 'equinox'. These times mark when the sun is directly above the equator, making day and night nearly equal worldwide.
The two equinoxes are your cosmic reset buttons: they're the only days when the sun rises almost due east everywhere on Earth! Ancient peoples tracked equinoxes using monuments like Stonehenge, treating them as sacred markers of cosmic order and agricultural seasons.
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