belight

From Middle English bilihten (“to illuminate”); equivalent to be- +‎ light. Compare Dutch belichten.

belight (third-person singular simple present belights, present participle belighting, simple past and past participle belighted or belit)

1. (transitive, rare, dialectal) To light up; illuminate.
2. (intransitive, rare, dialectal) To become lit up; shine up; dawn.