In Colombia, it is the same as air or vent. It is to place something to dry the air or wind action. Dry.
Expose to the air or wind, to dry, is vented or cools; Latin aura (wind) that takes it from the Greek 945; 965; 961; 945; (aura, breath, Breeze, breath). It is also extracting gold by hand, with its another etymology.
OREAR: In Costa Rica, search for gold in the rivers handcrafted.