virga |ˈvərgə|noun ( pl. -gae |-gē; -gī|) Meteorologya mass of streaks of rain appearing to hang under a cloud and evaporating before reaching the ground.ORIGIN 1940s: from Latin, literally ‘rod, stripe.’
To be honest, I played the word without knowing its meaning. I had to look it up afterwards, and was surprised to learn that it had nothing to do with astrology.