一切經音義 26.345

26.345

五翳（烏計反一烟二雲三塵四霧五羅睺羅言羅睺者是阿修羅別言此云障也六月一度以手障月謂之月蝕也）。

Five obscurations (yì has the fanqie w[ū] + [j]ì; first is smoke, second is clouds, third is dust, fourth is fog, and fifth is Rāhu; Rāhu is an alternate name for an asura, here translated as “Obstructor”; once every six months he obscures the moon with his hand, which is called a lunar eclipse).