The word 'vortex' entered English in the mid-17th century directly from Latin, where vortex meant "an eddy, a whirlpool." This Latin term is a derivative of the verb vertere, "to turn," which itself traces back to the Proto-Indo-European root wert-, meaning "to turn, to rotate." The literal sense of a spinning, turning mass of fluid was extended metaphorically to describe any powerful, engulfing force or situation that seems to draw things into its center, capturing the abstract feeling of being caught in a whirlwind of activity or emotion.

Structure: vort (turn, whirl) + ex (noun suffix) 'vort' originates from Latin vort-, the stem of vertere meaning "to turn." 'ex' is a Latin noun-forming suffix.