照てり合あう

godan verb (-u)

shine on each other; shed light on each other

Describes two or more light sources or reflective surfaces illuminating one another. Often used poetically or in descriptive writing.

• 月つきと湖みずうみが照てり合あう夜よるだった。

  It was a night when the moon and the lake shone on each other.

• 二ふたつの灯とう台だいの光ひかりが遠とおくで照てり合あっている。

  The lights of the two lighthouses are shining on each other in the distance.