Verses with the word lighten in the Apocrypha (2 verses):

Wisdom of Solomon 17:5
No power of the fire might give them light: neither could the bright flames of the stars endure to lighten that horrible night.

Baruch 1:12
And the Lord will give us strength, and lighten our eyes, and we shall live under the shadow of Nabuchodonosor king of Babylon, and under the shadow of Balthasar his son, and we shall serve them many days, and find favour in their sight.